BOOK
Tae-Jun Ha, Device physics of organic and graphene field-effect transistors, Lambert Academic Publishing, May, 2013
Tae-Jun Ha, Sustainable energy, Ch. 8-11, Donghwa Technology Publishing Co. Sep. 2015
Tae-Jun Ha and Jongho Lee, Graphene: charge transport and flexible nanoelectronics, Donghwa Technology Publishing Co. Jan. 2016
Tae-Jun Ha et al., Book chapter, Zero dimensional carbon nanomaterials: Material design methods, properties and applications, Elsevier, Jan. 2024
Tae-Jun Ha et al., Book chapter, Metal oxide based thin film transistors (IGZO) in Electric and Electronic Applications of Metal Oxides, Elsevier, Feb, 2024
PATENT
1) T. –J. Ha, J. Lee, D. Akinwande, A. Dodabalapur, Method to improve performance characteristics of transistors comprising graphene and other two-dimensional materials, Patent 5119-19900 (Serial No. 61/865374, Aug. 13, 2013)
2) T. –J. Ha, J. -Y. Jeon, Motion detection sensor and manufacturing method of the same, 10-1753384, June 2017.
3) T. –J. Ha, B. -S. Park, Human-interactive drone remote control systems based on patch-typed strain sensor and pressure sensors, 10-1990494, Jan. 2017.
4) T. –J. Ha, J. -Y. Jeon, Method for high quality solution-processed boron nitride thin film and its application in electronic devices, 10-2023106, Feb. 2017.
5) T. –J. Ha, B. -S. Park, J. -Y. Jeon, Low-temperature, low-pressure solution-processed polymer transfer media and transfer optimization method for laser printer, 10-1928355, Feb. 2017.
6) T. –J. Ha, High Performance Solution-Processed Thin-Film Transistors Employing Ferroelectric Copolymers Fabricated at Low Temperature for Transparent Flexible Displays and encapsulation process method, 10-2016157, June 2017.
7) T. –J. Ha, J. Jeon, B. Park, Solution-Processed Carbon/Fluoropolymer Field-Effect Transistors and Charge Transport Improvement Method, 10-2023111, Aug. 2017.
8) T. –J. Ha, B. Yu, Fabrication method of solution-processed high quality Al2O3/BN dielectric films for high performance IGZO TFTs, and IGZO TFTs thereof, 10-2014132, Nov. 2017.
9) T. –J. Ha, B. -C. Kang, Method of manufacturing electrode for measuring biosignal based on low temperature solution process, electrode for measuring biosignal, and apparatus for measuring biosignal using same, 10-2026850, Jan. 2018
10) T. –J. Ha, B. -C. Kang, B. -S. Park, Real-time glucose monitoring sensor system, and method of manufacturing glucose sensor based on low temperature solution process, 10-2077306, Feb. 2018
11) T. –J. Ha, B. -C. Kang, Flexible display and method of manufacturing thin film transistor based on low temperature solution process, 10-2023103, March 2018
12) T. -J. Ha, D. Chu, B. -C. Kang, Memristor Applicable to Neuromorphic System and Method of Manufacturing Memristor Consisting of Metal-oxide Films Fabricated by Solution Process, 10-2117658, April 2018
13) T. –J. Ha, B. -C. Kang, B. -S. Yu, Patterning Method Using Selective Surface Treatment That Improves Performance of Thin-Film Transistor Fabricated By Solution Process, 10-2079317, April, 2018
14) T. –J. Ha, B. Yu, J. Kim, Triple Point Recognition Device Based on Flexible Material for Object Recognition for Table Top Touch Screen, 10-2117659, July, 2018
15) T. –J. Ha, D. W. Kang, B. -C. Kang, S. Lee, Passivation Layer for Electronic Device with High Stability Fabricated By Solution Process and Fabrication Method Thereof, 10-2139797, Sep. 2018
16) T. –J. Ha, Y. Byun, J. -Y. Jeon, B. -C. Kang, High Performance Gas Sensor Capable of Sensing Nitric Oxide at Parts-Per-Billion Level and Fabrication Method by Solution Process, 10-2139802, Feb. 2019
17) T. –J. Ha, Y. Kim, J. -Y. Jeon, B. -S. Yu, Method of Manufacturing High Performance Ambipolar Transistor with Stack Configuration of Hybrid SWCNT and IGZO Based on Low Temperature Solution Process, 10-2199223, June 2019
18) T. –J. Ha, B. -S. Yu, Flexible Resistive RAM Based on Oxide Thin Film Fabricated by Low Temperature Solution Process with Oxygen Annealing and Method of Fabricating The Same, 10-2222884, July 2019
19) T. –J. Ha, T. Chung, B. -C. Kang, Highly-Sensitive Capacitive-Type Pressure Sensor for Detection of Motion Embedded into Automatic Safety Shutdown System of Cutting Process Equipment, 10-2242936, Nov. 2019
20) T. –J. Ha, M. Deshmukh, B. -C. Kang, Non-Enzymatic Electrochemical Glucose Sensor Based on Metal-Polymer-Carbon Nanocomposite Electrode and Manufacturing Method Thereof, 10-2338344, Dec. 2019
21) T. –J. Ha, J. Y, Jeon, B. -C. Kang, Flexible pH Sensor Based on Nanocomposite of Single-Wall Carbon Nanotube and Nafion Fabricated by Screen-Printing Process, 10-2303276, Jan. 2020
22) T. –J. Ha, M. Deshmukh, B. -C. Kang, Highly Stable and Reliable Dispersion of Single-Wall Carbon Nanotubes by Amphiphilic Copolymer Microsurfactant, and Manufacturing Method Thereof, 10-2381946, Jan. 2020
23) T. –J. Ha, C. Chen, C. Chen, T. Lee, B. Kang, Photocatalyst Based on Carbon Nitride Nanocomposite and Manufacturing Method Thereof, 10-0053819, May 2020
24) T. –J. Ha, S. -J. Park, J. -Y. Jeon, B. -C. Kang, Wearable temperature sensors based on metal-ion doped high-k metal-oxide dielectrics operating at low-voltage and high-frequency for healthcare monitoring systems, 10-2424918, Aug. 2020.
25) T. –J. Ha, H. Choi, B. -C. Kang, All-solution-processed on-skin electronics with ultra-conformal contact through self-reconfiguration and manufacturing method thereof, 10-2466447, Oct. 2020
26) T. –J. Ha, J. -Y. Jeon, S. -J. Park, Room-temperature operating hydrogen gas sensor based on metal-oxide nanostructure functionalized with metal nanoparticle by microwave absorption and manufacturing method thereof, 10-0166847, Dec, 2020
27) T. –J. Ha, B. -C. Kang, S. -J. Park, Wearable pressure/touch sensors based on hybrid dielectric composites and flexible electrodes, 10-0100586, July, 2021
28) T. –J. Ha, J. Jeon, S. Park, Extremely high sensitive flexible gas sensor and manufacturing method of the same, 10-0113766, Aug. 2021
29) T. –J. Ha, B. Kang, B. Hedau, S. Park, Metal-Carbon Matrix Structure Body and Dopamine Detecting Sensor Comprising the Same, 10-0010195, Jan. 2022
30) T. –J. Ha, B. Kang, S. Park, H. Choi, Multilayer sturucture and manufacturing method thereof, electricity generating element comprising said multilayer structure and manufacturing method thereof, 10-0026229, Feb. 2022
31) T. –J. Ha, B. Kang, B. Hedau, A composite material, manufacturing method thereof and an electricity generating element comprising the same, 10-0080521, Jun 2022
32) T. –J. Ha, S. -J. Park, Nitrogen Dioxide Detecting Sensor Based On Molybdenum Disulfide Field Effect Transistor, Method For Manufacturing The Same, and Method For Detecting Nitrogen Dioxide Using The Same, 10-0190090, Dec. 2022.
33) T. –J. Ha, S. -J. Park, Thin-film transistor and manufacturing method thereof, 10-0017018, Feb. 2023.
34) T. –J. Ha, B. Kang, B. Hedau, Catalyst Comprising Carbon Quantum Dot And Metal-Organic Framework, Use Thereof, and Manufacturing Method Thereof, 10-0026978, Feb. 2023.
35) T. –J. Ha, S. -J. Park, M. Kim, Flexible Humidity Sensor and Manufacturing Method of the same, 10-0098696, July. 2023.
36) T. –J. Ha, S. R. Park, S. -J. Park, Transparent heaters based on nanocomposites comprising metal nanostructures and Mxene and The manufacturing method thereof, 10-0144601, Oct. 2023
37) T. –J. Ha, M. -H. Kim, S. -J. Park, Fluorine-based resin thin films with metal-organic framework for triboelectric nanogenerator, and the triboelectric nanogenerator comprising the same, 10-0029383, Feb. 2024
38) T. –J. Ha, B. Hedau, S. -J. Park, Electrocatalyst based on rare metal doped metal covalent organic framework and electrode for oxygen reduction reaction comprising the same, 10-0029419, Feb. 2024
JOURNAL
"ORR ~" submitted
"ReRAM ~" submitted
"Gelatin~" submitted
"Transparent~" submitted
"IGZO~" submitted
"ATZ~" submitted
2023
116) P. Sayyad, S. -J. Park, T. -J. Ha*, Bioinspired nanoplatforms for human-machine interfaces: recent progress in materials and device applications, Biotechnology Advances 70, 108297
115) B. Hedau, S. -J. Park, B. Kang, T. -J. Ha*, Bifunctional carbon quantum dot-embedded metal-organic framework nanohybrid as a highly efficient electrocatalyst for water splitting and CO2 reduction, Carbon 216, 118527 (OUTSIDE FRONT COVER FEATURED)
114) M. -H. Kim, S. -J. Park, T. -J. Ha*, Wearable Triboelectric Nanogenerators Based on Printed Polyvinylidene Fluoride Films Incorporated with Cobalt-Based Metal-Organic Framework for Self-Powered Mobile Electronics, Energy & Environmental Materials (in press) (Highlighted in DAILY SMART)
113) S. -J. Park, M. -H. Kim, T. -J. Ha*, All-printed wearable humidity sensor with hydrophilic polyvinylpyrrolidone film for mobile respiration monitoring, Sensors & Actuators B: Chemical 394 (1) 134395 (Highlighted in MT & NATE)
112) S. Wang, B. -C. Kang, S. -J. Park, T. -J. Ha*, L. Jagadamma*, P3HT vs Spiro-OMeTAD as a hole transport layer for halide perovskite indoor photovoltaics and self-powering of motion sensors, Journal of Physics: Materials, 6 (2), 024004
111) S. -J. Park, T. -J. Ha*, MoS2 monolayers functionalized with gold nanoparticles using microwave absorption for FET-type NO2 gas sensors in ppb-levels, Applied Surface Science, 622 (15), 156959
110) S. -J. Park, T. -J. Ha*, Effects of Sn Doping on the Electrical Performance and Stability of Sub-V Operating Metal-Oxide Thin-Film Transistors Fabricated by Oxygen Annealing, IEEE Electron Device Letters 44 (4), pp.642-645
109) M. Deshmukh, S. -J. Park, H. Thorat, G. Bodkhe, A. Ramanavicius, S. Ramanavicius, M. Shirsat, T. -J. Ha*, Advanced Energy Materials: Current Trends and Challenges in Electro- and Photo-Catalysts for H2O splitting (Review article), Journal of Industrial and Engineering Chemistry 119 90-111
2022
108) B. -C. Kang, S. -J. Park, H. Choi, T. -J. Ha*, All-solution-processed wearable moist-electric generators based on engineered nanocomposites of carbon nanotube and gelatin incorporated with PEDOT:PSS interfacial blocking layer, Nano energy 104, Part B (15), 107890 (Highlighted in Joongang Ilbo)
107) B. Hedau, B. -C. Kang, T. -J. Ha*, "Enhanced triboelectric effects of self-poled MoS2-embedded PVDF hybrid nanocomposite films for bar-printed wearable triboelectric nanogenerators", ACS Nano 16 (11) 18355-18365 (SUPPLEMENTARY JOURNAL COVER FEATURED) (Highlighted in Joongang Ilbo)
106) S. -J. Park, T. -J. Ha*, Microwave-irradiated metal-oxide thin-film transistors with recessed gate structure and their applications in logic circuits, IEEE Transactions on Electron Devices 70 (1) 99-104
105) B. Hedau, B. -C. Kang, S. -J. Park, T. -J. Ha*, "High-Performance Non-Enzymatic Electrochemical Dopamine Sensors Based on Metal-Organic Framework Derived Co-C-Matrix Nanoplatforms", Journal of The Electrochemical Society 169 (8), 087504
104) S. -J. Park, T. -J. Ha*, " Sol-gel-based metal-oxide thin-film transistors for high-performance flexible NMOS inverters", Journal of Alloys and Compounds
912 (15), 165228
103) B. -C. Kang, T. -J. Ha*, "Non-Invasive Electroencephalogram Sensors Based on All-Solution-Processed Trapezoidal Electrode Array", Applied Physics Letters 120, 213301
102) S. -J. Park, T. -J. Ha*, "Improved electric contact of recessed source and drain electrodes for sol-gel-based thin-film transistors consisting of amorphous ZrO2 and IGZO fabricated by microwave-annealing", Applied Physics Letters 120, 153301
101) J. -Y. Jeon, S. -J. Park, T. -J. Ha*, " Wearable nitrogen oxide gas sensors based on hydrophobic polymerized ionogels for the detection of biomarkers in exhaled breath", Sensors & Actuators B: Chemical, 360, 131672
100) H. Shin, S. -J. Park, B. -C. Kang, T. -J. Ha*, "Comprehensive analysis of two-dimensional charge transport in thin-film transistors based on random networks of single-wall carbon nanotubes using transient measurements", Nano Research 15, 1524-1531
2021
99) S. -J. Park,J. -Y. Jeon, T. -J. Ha*, "Wearable humidity sensors based on bar-printed poly(ionic liquid) for real-time humidity monitoring systems", Sensors & Actuators B: Chemical 354, 131248
98) B. -C. Kang, S. -J. Park, T. -J. Ha*, " Wearable Pressure/Touch Sensors Based on Hybrid Dielectric Composites of Zinc Oxide Nanowires/Polydimethylsiloxane and Flexible Electrodes of Immobilized Carbon Nanotube Random Networks" ACS Applied Materials & Interfaces 13 (35), 42014-42023 (SUPPLEMENTARY JOURNAL COVER FEATURED)
97) B. -C. Kang, H. Choi, S. -J. Park, T. -J. Ha*, "Wearable triboelectric nanogenerators with the reduced loss of triboelectric charges by using a hole transport layer of bar-printed single-wall carbon nanotube random networks", Energy 233 (15), 121196
96) J. -Y. Jeon, S. -J. Park, T. -J. Ha*, "Functionalization of zinc oxide nanoflowers with palladium nanoparticles via microwave absorption for room temperature- operating hydrogen gas sensors in the ppb-level", ACS Applied Materials & Interfaces 13 (21), 25082-25091
95) H. Choi, B. -C. Kang, T. -J. Ha*, "Self-reconfigurable high-weight-per-volume-gelatin films for all-solution-processed on-skin electronics with ultra-conformal contact", Biosensors and Bioelectronics 184 (15), 113231
94) M. Deshmukh, S. -J. Park, B. Hedau, T. -J. Ha*, "Recent progress in solar cells based on carbon nanomaterials (Review article)", Solar energy 220 (15), 953-990.
93) S. -J. Park, J. -Y. Jeon, B. -C. Kang, T. -J. Ha*, "Wearable temperature sensors based on lanthanum-doped aluminum-oxide dielectrics operating at low-voltage and high-frequency for healthcare monitoring systems" Ceramics International 47 (4), 4579-4586
2020
92) M. Deshmukh, B. -C. Kang, J. -Y. Jeon, T. -J. Ha*, "Stable Dispersions of Single-Wall Carbon Nanotubes Using Self-Assembled Amphiphilic Copolymer Surfactants for Fabricating Wafer-Scale Devices", ACS Applied Nano Materials 3 (9), 8829-8839
91) S. -J. Park, M. Deshmukh, B. -C. Kang, J. -Y. Jeon, C. Chen*, T. -J. Ha*, "A Review of Advanced Electronic Applications Based on Carbon Nanomaterials (Review article)", ECS Journal of Solid State Science and Technology, 9, 071002
90) M. Deshmukh, S. -J. Park, B. -C. Kang, T. -J. Ha*, "Carbon Nanohybrids for Advanced Electronic Applications (Review article)", Physica Status Solidi A: Applications and Materials Science, 217 (17), 2000199
89) C. Zhong, T. Lee, J. Li, Y. Lai, T. -J. Ha*, C. Chen*, "Origin of the enhanced photocatalytic activity of graphitic carbon nitride nanocomposites and the effects of water constituents", Carbon 167 (15), 852-862
88) M. Deshmukh, B. -C. Kang, T. -J. Ha*, "Non-enzymatic electrochemical glucose sensors based on polyaniline/reduced-graphene-oxide nanocomposites functionalized with silver nanoparticles", Journal of Materials Chemistry C , 8, 5112-5123 (Added to an online collection to mark the Lunar New Year)
87) S. -J. Park, T. -J. Ha*, "Effects of interfacial dielectric layers on the charge transport characteristics in sol-gel based amorphous metal-oxide thin-film transistors", Thin Solid Films, 708 (31), 138113
86) J. -Y. Jeon , B. -C. Kang, T. -J. Ha*, "Flexible pH sensors based on printed nanocomposites of single-wall carbon nanotubes and Nafion", Applied Surface Science, 514, 145956
85) S. Park, B. Yu, J. -Y. Jeon , B. -C. Kang, T. -J. Ha*, "Sol-gel based zirconium dioxide dielectrics by oxygen-annealing at low temperature for highly stable and robust flexible resistive random access memory", Journal of Alloys and Compounds 825, 154086
84) B. -C. Kang, T. -J. Ha*, "Low Voltage Operating Complementary-type Graphene Inverters with an Interacting Layer of Solution -processed Fluorocarbon Copolymers", IEEE Electron Device Letters, 41 (3), 429-432
83) K. Yang, W. Lee, J. Jeon, T. -J. Ha*, Y. Kim*, "Controlling the visibility of embedded silicon solar cells in building-integrated photovoltaic windows using surface structure modification and metal-oxide back coating",Solar Energy, 197, 99-104
82) M. Deshmukh, J. Jeon, T. -J. Ha*, "Carbon nanotubes: An effective platform for biomedical electronics", Biosensors & Bioelectronics, 150, 111919
2019
81) B. -C. Kang, T. -J. Ha*, "Human-interactive drone system remotely controlled by printed strain/pressure sensors consisting of carbon-based nanocomposites", Composites Science and Technology, 182, 107784
80) S. Yoon, S. Ha, T. Moon, S. Jeong, T. -J. Ha*, H. Choi*, D. -W. Kang*, "Carbon Nanotubes Embedded poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) Hybrid Hole Collector for Inverted Planar Perovskite Solar Cells", Journal of Power Sources, 435, 226765
79) B. S. Yu, J. Y. Jeon, B. -C. Kang, W. Lee, Y. Kim*, T. -J. Ha*, "Wearable 1V operating thin-film transistors with solution-processed metal-oxide semiconductor and dielectric films fabricated by deep ultra-violet photo annealing at low temperature", Scientific Reports, 9, 8416
78) J. Y. Jeon, B. -C. Kang, Y. Byun*, T. -J. Ha*, "High-performance gas sensors based on single-wall carbon nanotube random networks for detection of nitric oxide down to ppb-level", Nanoscale 11, 1587-1594 (OUTSIDE FRONT COVER FEATURED) (Highlighted in Onedaily)
77) B. -C. Kang, T. -J. Ha*, "The improved performance molybdenum disulphide thin-film transistors operating at low voltage by solution-processed fluorocarbon encapsulation", Electronic Materials Letters , 15 (4), 391-395
76) J. Y. Jeon, B. -S. Yu, Y. -H. Kim*, T. -J. Ha*, "Solution-processed hybrid ambipolar thin-film transistors fabricated at low temperature", Electronic Materials Letters 15 (4), 402-408
75) S. -J. Park, B. -S. Yu, T. -J. Ha*, "The effect of crystalline aluminum oxide on device performance of solution-processed indium-gallium-zinc-oxide thin-film transistors operating at low voltage", Journal of Nanoscience and Nanotechnology, 19 (10), 6178-6182
2018
74) B. -C. Kang, B. -S. Park, T. -J. Ha*, "Highly sensitive wearable glucose sensor systems based on functionalized single-wall carbon nanotubes with glucose oxidase-nafion composites", Applied Surface Science, 470 (15), 13-18
73) S. Lee, T. -J. Ha*, D. -W. Kang*, "Mixed-Halide Lead-Tin Binary Perovskite Films with various Tin-content for Lead-reduced Solar Cells", Materials Letters 227 (15), 311-314
72) Y. Pan, T. Wan, H. Du, B. Qu, D. Wang, T. -J. Ha*, D. Chu*, "Mimicking synaptic plasticity and learning behaviours in solution processed SnO2 memristor", Journal of Alloys and Compounds 757, 496-503
71) B. C. Kang, S. Lee, D. -W. Kang*,T. -J. Ha*, "Improved stability in perovskite solar cells by solution-processed fluorocarbon passivation", IEEE Electron Device Letters, 39 (6) 843-846 (OUTSIDE FRONT COVER FEATURED)
70) P. Guan, Z. Xu, X. Lin, N. Chen, H. Tong, T. -J. Ha, D. Chu, "Recent Progress in Silver Nanowires: Synthesis and Applications (Review article)", Nanoscience and Nanotechnology Letters, 10 (2), 155-166
69) B. -S. Yu, T. -J. Ha*, "High dielectric performance of solution-processed aluminum oxide-boron nitride composite films", Electronic Materials Letters, 14 (5) 563-568
68) B. -S. Yu, D. -W. Kang*, T. -J. Ha*, "The surface analysis of dielectric thin films by contact angle measurements", Science of Advanced Materials, 10, 1310-1314 (OUTSIDE FRONT COVER FEATURED)
67) B. -S. Yu, T. -J. Ha*, "High-performance solution-processed IGZO thin-film transistors with Al2O3/BN composite dielectrics fabricated at low temperature", Physica Status Solidi A: Applications and Materials Science, 215 (12), 1700802
66) B. -C. Kang, T. -J. Ha*, "Improved device performance of solution-processed single-wall carbon nanotube transistors by a patterning technique using a selective surface treatment", Journal of Nanoscience and Nanotechnology 19, 1729-1733
65) B. -C. Kang, T. -J. Ha*, "Low-Voltage Operating Single-Wall Carbon Nanotube Thin-Film Transistors Using High Work Function Contacts on Flexible Substrates", Journal of Nanoscience and Nanotechnology 19, 1759-1763
64) B. -C. Kang, T. -J. Ha*, "Solution-processed single-wall carbon nanotube transistor arrays for wearable display backplanes", AIP Advances 8, 015305
63) B. -C. Kang, T. -J. Ha*, "Wearable carbon nanotube based dry-electrodes for electrophysiological sensors", Japanese Journal of Applied Physics 57, 05GD02
62) B. -C. Kang, J. -Y. Jeon, Y. T. Byun*, T. -J. Ha*, "Functionalized carbon nanotube sensors for the detection of sub-ppm nitric oxide gas", Journal of Nanoscience and Nanotechnology, 18 (9), 6562-6564
2017
61) K. Yang, J. Kim, H. Cho, T. -J. Ha*, Y. -H. Kim*,"Environment-stable solar window modules encapsulated with UV-curable transparent resin", Solar Energy, 158, 528-532
60) B. -C. Kang, T. -J. Ha*, "Single-Walled Carbon Nanotube Short-Channel Transistors Operating at Ultra-Low Voltages", IEEE Journal of the Electron Devices Society 5 (6), 525-529
59) B. -S. Park, S. Lee, S. Yoon, T. -J. Ha*, D. Kang*, "Methlyammonium Lead mixed halide films processed with a new composition for planar perovskite solar cells",Applied Surface Science, 427, Part B, 1 421-426.
58) S. Yoon, T. -J. Ha*, D. Kang*, "Improving performance and reliability of inverted planar perovskite solar cells with carbon nanotubes/PEDOT:PSS hybrid hole collector", Nanosacle, 9, 9754-9761
57) J. Kim, S. Choi, M. Kim, T. -J. Ha*, Y. -H. Kim*, "Strontium doping effects on the characteristics of solution-processed aluminum oxide dielectric layer and its application to low-voltage-operated indium-gallium-zinc-oxide thin-film transistors", Ceramics International, 43, 13576-13580
56) B. -S. Park, T. -J. Ha*, "Carbon-based pressure sensors with wavy configuration", IEEE Electron Device Letters, 38, (7), 979-982
55) B. -S. Yu, J. -Y. Jeon, A. Henry, and T. -J. Ha*, "Characteristics of low-temperature solution-processed boron nitride thin films for flexible nanoelectronics", Journal of Nanoscience and Nanotechnology,17, 8567-8570
54) J. -Y. Jeon, T. -J. Ha*, "Improvement in interfacial characteristics of low-voltage carbon nanotube thin-film transistors with solution-processed boron nitride thin films", Applied Surface Science, 413 (15), 118-122
53) R. Jaisutti, M. Lee, J. Kim, S. Choi, T. -J. Ha, J. Kim, H. Kim, S. K. Park, Y. -H. Kim, "Ultrasensitive Room-Temperature Operable Gas Sensors Using p‑Type Na:ZnO Nanoflowers for Diabetes Detection", ACS Applied Materials & Interfaces, 9 (10), 8796-8804
52) T. -J. Ha*, "Effect of gate-dielectrics on the electrical characteristics of solution-processed single-wall-carbon-nanotube thin-film transistors", Electronic Materials Letters, 13 (4), 287-291
51) T. -J. Ha*, "Restorative effect on electrical characteristics of graphene based field-effect transistors", Journal of Nanoscience and Nanotechnology, 17, 9142-9248.
2016
50) T. –J. Ha*, "High performance solution-processed zinc-tin-oxide thin-film transistors employing ferroelectric copolymers fabricated at low temperature for transparent flexible displays", IEEE Electron Device Letters, 37, 1586-1589
49) T. Kim, N. Seong, J. Ha, H. Kim, T. –J. Ha*, Y. Hong*, "The rapid and dense assembly of solution-processed single-wall carbon nanotube semiconducting films via an acid based additive in the aqueous dispersion", Journal of Materials Chemistry C, 4, 5461-5468
48) B. -S. Park, T. –J. Ha*, "Charge Transport Properties of Improved Reduced-Graphene-Oxide-Based Field-Effect Transistors", IEEE Electron Device Letters, 37 (6), 789-792
47) S. Kim, T. -J. Ha, P. Sonar, A. Dodabalapur, "Charge Transport in Deep and Shallow States in a High-mobility Polymer Field-Effect Transistor", IEEE Transactions on Electron Devices, 63 (3), 1254-1259
46) J. -Y. Jeon, T. -J. Ha*, "Waterproof electronic-bandage with tunable sensitivity for wearable strain sensors", ACS Applied Materials & Interfaces, 8 (4), 2866-2871
45) J. -Y. Jeon, T. -J. Ha*, "High performance single-walled carbon nanotube based thin-film transistors by reducing charge transfer", IEEE Transactions on Electron Devices, 63 (2), 827-831
44) J. -Y. Jeon, T. –J. Ha*, "Charge transport study of solution-processed graphene/fluoropolymer field-effect transistors", Nanoscience and Nanotechnology Letters, 8 (9), 774-777
43) T. -J. Ha*, "High performance HfIZO thin-film transistors based on transparent AMOLED displays", Science of Advanced Materials, 8, 307-311
2015
42) T. -J. Ha*, "Hybrid graphene/fluoropolymer field-effect transistors with improved device performance", IEEE Transactions on Electron Devices, 62 (12), 4340-4344.
41) T. -J. Ha*, W. -J. Cho, H. -B. Chung, S. -M. Koo, "A Comparison of Photo-Induced Hysteresis Between Hydrogenated Amorphous Silicon and Amorphous
IGZO Thin-Film Transistors", Journal of Nanoscience and Nanotechnology, 15, 6695-6698
40) T. -J. Ha*, A. Lee, "Chemical vapor deposition grown monolayer graphene field-effect transistors with reduced impurity concentration", Electronic Materials Letters, 11 (4), 552
39) S. Koo, T. -J. Ha*, "Improved photo-induced stability in amorphous metal-oxide based TFTs for transparent displays", Journal of Nanoscience and Nanotechnology, 5, 7800
38) T. Lee, M. -S. Kang, T. -J. Ha*, S. Koo*, "Electrical Characteristics of Ni-CNT-SiO2-SiC Structured 4H-SiC MIS Capacitors", Journal of Nanoscience and Nanotechnology, 5, 7542
37) N. Seong, T. Kim, H. Kim, T. -J. Ha*, Y. Hong*, "Tunable threshold voltage in solution-processed single-walled carbon nanotube thin-film transistors", Current Applied Physics, 15, S8
36) T. -J. Ha*, "Restorative effect of oxygen annealing on device performance in HfIZO thin-film transistors", AIP Advances, 5, 037136.
35) J. Park, T. -J. Ha, W. J. Cho, "Improvement of air stability on solution‐processed InZnO thin‐film transistors by microwave irradiation and In: Zn composition ratio", physica status solidi (a), 8, 1719
34) T. -J. Ha*, "Photo-induced electrical instability in hydrogenated amorphous silicon based thin-film transistors and the effect of its phase transition", Current Applied Physics, 15, 330
2014
33) T. -J. Ha, K. Chen, S. Chuang, K. M. Yu, D. Kiriya, A. Javey, "Highly Uniform and stable n-Type carbon nanotube transistors by using positively charged silicon nitride thin films", Nano Letters, 15, 392
32) T. -J. Ha*, "Visible-light-induced instability in amorphous metal-oxide based TFTs for transparent electronics", AIP Advances, 4, 107136
31) S. Kim, T. -J. Ha*, P. Sonar, A. Dodabalapur, "Density of trap states in a polymer field-effect transistor", Applied Physics Letters, 105, 133302
30) H. Ota, K. Chen, Y. Lin, D. Kiriya, H. Shiraki, Z. Yu, T. -J. Ha, A. Javey, "Highly-deformable, liquid-state heterojunction sensors", Nature Communications, 5, 5032
29) K. Chen, D. Kiriya, M. Hettick, M. Tosun, T. -J. Ha, S. R. Madhvapathy, S. Desai, A. Sachid, A. Javey, "Air stable n-doping of WSe2 by silicon nitride thin films with tunable fixed charge density", APL Materials, 2, 092504
28) T. -J. Ha*, “Low-voltage and hysteresis-free organic thin-film transistors employing solution-processed hybrid bilayer gate dielectrics”, Applied Physics Letters, 105, 043305
27) D. Kiriya, K. Chen, H. Ota, Y. Lin, P. Zhao, Z. Yu, T. -J. Ha, A. Javey, "Design of surfactant-substrate interactions for roll-to-roll assembly of carbon nanotubes for thin-film transistors", Journal of the American Chemical Society (JACS), 136 (31), pp.11188-11194
26) T. -J. Ha, D. Kiriya, K. Chen, A. Javey, “Highly stable hysteresis-free carbon nanotube thin-film transistors by fluorocarbon polymer encapsulation”, ACS Applied Materials & Interfaces, 6(11), pp.8441-8446
25) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Improved performance in diketopyrrolopyrrole-based transistors with bilayer gate dielectrics”, ACS Applied Materials & Interfaces, 6 (5), pp. 3170-3175
24) P. Sonar, T. -J. Ha, Y. Seong, S. -C. Yeh, C. -T. Chen, S. Manzhos, and A.Dodabalapur, “A Study of Diphenylfumaronitrile and Furan-Substituted Diketopyrrolopyrrole alternating Copolymer and its Thin Film Transistor”, Macromolecular Chemistry and Physics, 215 (8), pp.725-732
Before 2014
23) T. -J. Ha, J. Lee, L. Tao, I. Kholmanov, R. S Ruoff, P. J. Rossky, D. Akinwande, and A. Dodabalapur, “Graphene/fluoropolymer hybrid materials with enhancement of all device properties for improved field-effect transistors”, IEEE International electron devices meeting (IEDM) Technical Digest 2013
22) J. Lee*, S. Chang*, T. -J. Ha, H. Li, R. S Ruoff, D. Akinwande, and A. Dodabalapur, “High-performance flexible nanoelectronics: 2D atomic channel materials for low-power digital and high-frequency analog devices”, IEEE International electron devices meeting (IEDM) Technical Digest 2013
21) J. Lee, T.- J. Ha, H. Li, K. N. Parrish, M. Holt, A. Dodabalapur, R. S. Ruoff, and D. Akinwande, “25GHz Embedded-Gate Graphene Transistors with High-k Dielectrics on Extremely Flexible Plastic Sheets”, ACS Nano , 7 (9), pp. 7744-7750, 2013
20) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge Transport Study of High Mobility Polymer Thin-film Transistors Based on Thiophene Substituted Diketopyrrolopyrrole Copolymer”, Physical Chemistry Chemical Physics(PCCP), 15, (24) pp. 9735-9741, 2013
19) T.-J. Ha*, A. Dodabalapur, “Photo stability of solution-processed low-voltage high mobility zinc-tin-oxide/ZrO2 thin-film transistors for transparent display applications”, Applied Physics Letters, 102, (12) 123506, 2013
18) P. Sonar, T. -J. Ha and A. Dodabalapur, “Synthesis, Characterization and Organic Field Effect Transistor Performance of Diketopyrrolopyrrole- Fluorenone Copolymer”, Physical Chemistry Chemical Physics,15, (20) pp. 7475-7478, 2013
17) T. -J. Ha, J. Lee, D. Akinwande, A. Dodabalapur, “The Restorative Effect of Fluoropolymer Coating on Electrical Characteristics of Graphene Field-Effect Transistors”, IEEE Electron Device letters,34 (4), pp. 559-562, 2013
16) J. Lee, T. -J. Ha, K. N. Parrish, Sk. F. Chowdhury, L. Tao, A. Dodabalapur, and D. Akinwande, “High-performance current saturating graphene field-effect transistor with hexagonal boron nitride dielectric on flexible polymeric substrates”, IEEE Electron Device letters ,34 (2), pp. 172-174, 2013
15) T. -J. Ha, J. Lee, Sk. F. Chowdhury, D. Akinwande, P. J. Rossky, A. Dodabalapur, “Transformation of the Electrical Characteristics of Graphene Field-Effect Transistors with Fluoropolymer”, ACS Applied Materials & Interfaces, 5 (1), pp. 16-20, 2012
14) P. Sonar, T. -J. Ha and A. Dodabalapur, “A fluorenone based low band gap solution processable copolymer for air stable and high mobility organic field effect transistors”, Chemical Communications. 49, (16) pp. 1588-1590, 2012
13) J. Lee, K. N. Parrish, Sk. F. Chowdhury, T. -J. Ha, Y. Hao, L.Tao, A. Dodabalapur, D.Akinwande, “State-of-art Graphene Transistors on Hexagonal Boron Nitride, High-k, and Polymeric Films for GHz Flexible Analog Nanoelectronics”, IEDM Technical Digest 2012
12) T. -J. Ha, D. Akinwande, A. Dodabalapur, “Hybrid graphene/organic semiconductor field-effect transistors”, Applied Physics Letters, 101, (3) 033309, 2012
11) T. -J. Ha, P. Sonar, and A.Dodabalapur, “Solution-Processed Dual-Gate Polymer Field-Effect Transistors for Display Applications”, Journal of Display Technology, 9 (9), 710-714, 2012
10) T. -J. Ha, Jongho Lee, Sk. Fahad Chowdhury, Deji Akinwande, Ananth Dodabalapur, “Material properties and field-effect transistor characteristics of hybrid organic/graphene active layers”, SPIE, 8478, 847810, 2012
9) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge-Carrier Velocity Distributions in High- Mobility Polymer Dual-Gate Thin-Film Transistors”, IEEE Electron Device letters, 33 (6), pp. 899-901, 2012
8) T. -J. Ha, P. Sonar, S. P. Singh and A. Dodabalapur, “Characteristics of High-Performance Ambipolar Organic Field-Effect Transistors Based on Diketopyrrolopyrrole-Benzothiadiazole Copolymer”, IEEE Transaction on Electron Devices, 59 (5), pp.1494-1500, 2012
7) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge Carrier Velocity Distributions in High Mobility Polymer Field-Effect Transistors”, Applied Physics Letters, 100 (15), pp. 153302, 2012
6) T. -J. Ha, P. Sonar, B. Cobb, and A. Dodabalapur, “Charge Transport and Density of Trap States in Balanced High Mobility Ambipolar Organic Thin-Film Transistors”, Organic Electronics, 13(1), pp. 136-141, 2012
5) T. -J. Ha, D. Sparrowe, and A. Dodabalapur, “Device Architectures for Improved Amorphous Polymer Semiconductor Thin-Film Transistors”, Organic Electronics, 12 (11), pp. 1846-1851, 2011
4) T. -J. Ha, P. Sonar, and A. Dodabalapur, “High mobility top-gate and dual-gate polymer thin-film transistors based on diketopyrrolopyrrole-naphthanlene copolymer”, Applied Physics Letters, 98, (25) 253305, 2011
3) P. Sonar, S. P. Singh, Y. Li, Z. –E. Ooi, T. -J. Ha, I. Wong, M. S. Soh and A. Dodabalapur, “High mobility organic thin film transistor and efficient photovoltaic devices using versatile donor–acceptor polymer semiconductor by molecular design”, Energy & Environmental Science, 4,(6) pp.2288-2296, 2011
2) H. –S. Park, T. -J. Ha, Y. Hong, J. –H. Lee, B. –J. Lee, B. –H. You, N. –D. Kim, and M. –K. Han, "A touch-sensitive display with embedded hydrogenated amorphous-silicon photodetector arrays," Journal of the Society for Information Display, 16(8) pp. 1165-1169, 2008
1) H. –S. Park, T. -J. Ha, Y. Hong, M. –K. Han, D. –H. Woo, K. –S. Shin, and C. –W. Kim, "A self-reset ambient-light sensor system for low-temperature polycrystalline-silicon active-matrix displays," Journal of the Society for Information Display, 16(8), pp. 889-893, 2008
CONFERENCE PRESENTATION and/or PROCEEDING (*oral presentation)
145) *M. Kim, S. Park, T. -J. Ha, "Self-powered sensor systems based on triboelectric nanogenerators', ICERE, Feb. 2024 (Best presenation award) (Highlighted in Joongang Ilbo)
144) *S. Park, S. Park, T. -J. Ha, "High-performance transparent heaters for bioelectronic applications", ICERE, Feb. 2024 (Best presenation award)(Highlighted in Joongang Ilbo)
143) *S. Park, T. -J. Ha, "Wearable UV photodetectors based on sol-gel-based metal-oxide films operating at sub-V", IEEE IPC, Nov. 2023
142) *B. Hedau, S. Park, T. -J. Ha, "Water splitting based on metal-organic framework electrocatalysts", ICAE, Nov. 2023
141) *M. Kim, S. Park, T. -J. Ha, "Electromaterial composites for enhanced output performance of triboelectric nanogenerators", ICAE, Nov. 2023
140) *S. Park, T. -J. Ha, "Functionalized molybdenum disulfide monolayers for field-effect transistor-type gas sensors", ICAE, Nov. 2023
139) S. Park, T. -J. Ha, "Fluorocarbon passivation for the improved device performance of thin-film transistors", KJF-ICOMEP, Aug. 2023
138) S. Park, T. -J. Ha, "Device engineering in sol-gel-based metal-oxide thin-film transistors", IMID, Aug. 2023
137) S. Park, S. Park, T. -J. Ha, "Effects of metal ion-doping on the electrical characteristics of oxygen-annealed metal-oxide thin-film transistors operating at Sub-V", IMID, Aug. 2023
136) *M. Kim, S. Park, T. -J. Ha, "Triboelectric nanogenerators for wearable self-powered systems", NanoKorea, July. 2023
135) *S. Park, S. Park, T. -J. Ha, "Transparent conductive electrodes based on solution-processed metal-nanowire films for high-performance transparent heaters", NanoKorea, July. 2023
134) S. Park, T. -J. Ha, "Toward breath biosensors based on polymer incorporated metal oxide nanohybrids for the realtime diagnosis of metabolic disorders and their application in self powered bioelectronics", Biosensors, June 2023
133) B. Hedau, T. -J. Ha, "Green synthesizedb iosensors based on metal organic framework hollow nanocages for rapid andefficient electrochemical analyses of pesticides in food products",Biosensors, June 2023
132) *S. Park, T. -J. Ha, "Engineered polymer composites for high-performance wearable bioelectronics", APME, April. 2023
131) *S. Park, T. -J. Ha, "Engineered carbon nanohybrids for wearable moist-electric generators", MRS spring, April. 2023
130) S. Park, T. -J. Ha, "Polymerized ionogels for wearable chemical biosensors detecting biomarkers in exhaled breath", MRS spring, April. 2023
129) S. Park, T. -J. Ha., "Contact engineering for improved device performance in low-voltage operating molybdenum disulfide thin-film transistors in bioelectronic applications", ICCE-Asia, Oct. 2022
128) S. Park, T. -J. Ha et al., "Flexible active-matrix devices based on sol-gel-based metal-oxide dielectrics and semiconductors by O2 annealing" IMID, Aug. 2022
127) B. Kang, T. -J. Ha, "Protein-based conductive composites for wearable biosensors", MCARE, Aug. 2022
126) *S. Park, T. -J. Ha et al., "Chemiresistive nano gas sensors based on molybdenum disulfide thin-film transistors for bioelectronic applications", NanoKorea, July, 2022
125) S. Park, T. -J. Ha, "High-quality boron nitride thin films fabricated by solution process at lowtemperatures for flexible nanoelectronics", IWUMD, May, 2022
124) *T. -J. Ha (INVITED), "Chemiresistive-type nano gas sensors based on functionalization", Sensors, April. 2022
123) B. Kang, T. -J. Ha et al., "Printed nanocomposite films for human-interactive sensor applications", KFPE, Dec. 2021
122) J. Jeon, T. -J. Ha et al., "All-solution-processed physical sensors for human-interactive displays", KFPE, Dec. 2021
121) *H. Choi, T. -J. Ha et al., "Biocompatible conductive composites for biodegradable electronics", IUMRS-ICA , Oct. 2021
120) *S. Park, T. -J. Ha et al., "Solution-processed metal-oxide dielectrics with controlled oxygen vacancies", IUMRS-ICA , Oct. 2021
119) J. Jeon, T. -J. Ha et al., "Printable carbon-based nanocomposites for flexible/wearable electronic applications", IUMRS-ICA , Oct. 2021
118) B. Kang, T. -J. Ha et al., "Hybrid nanocomposites for non-enzymatic electrochemical biosensors", ISE 2021, Sep. 2021 (Best poster award)
117) S. Park, T. -J. Ha et al., "Low-voltage operating metal-oxide thin-film transistors with high-k crystalline metal-oxide dielectrics for active-matrix displays", IMID, Aug. 2021
116) J. Jeon, T. -J. Ha et al., "The restorative effect of flurocarbon encapsulation on the device performance of molybdenum disulphide thin-film transistors operating at low voltages for active matrix displays", IMID, Aug. 2021
115) S. Park, T. -J. Ha et al., "Metal-oxide thin-film transistors operating at low-voltages for display backplanes", IMID, Aug. 2021
114) H. Choi, T. -J. Ha et al.,"Highly stable and robust on-skin electronics on flexible substrates for human-interactive displays", IMID, Aug. 2020
113)*B. Kang, T. -J. Ha et al.,"Triboelectric nanogenerators with the reduced loss of tribo-charges", NanoKorea, July, 2020
112)*J. Jeon, T. -J. Ha et al.,"Improved dispersibility of carbon nanotube suspensions by polymeric additives", ICMEA, Jan, 2020.
111)*S. Park, T. -J. Ha et al.,"Functionalized carbon nanotube random networks for high performance nanoelectronics", ICMEA, Jan. 2020.(Excellent oral presentation)
110) B. Kang, T. -J. Ha et al.,"Molecular functionalization of graphene transistors for neural-interface systems", ICMS, Nov. 2019
109) B. Kang, T. -J. Ha et al.,"Functional nanocomposites for human-interactive sensors", Euromat, Sept. 2019
108) S. Park, T. -J. Ha et al.," Wearable photo transistors with sol-gel based metal-oxide semiconductors for ultra-violet photodetectors", IMID, Aug. 2019
107) B. Yu, T. -J. Ha et al., " Low-voltage operating metal-oxide thin film transistors for ultra thin flexible electronics", IMID, Aug. 2019
106) S. Park, T. -J. Ha et al., "Device performance of solution-processed resistive random access memory consisting of nanocrystalline metal-oxide dielectrics", NanoKorea, July 2019 (Best poster award)
105) B. Kang, T. -J. Ha et al., "Chemiresistive pH sensors based on advanced nanocomposite materials for neurological healthcare monitoring systems", ICMAT, June 2019.
104) B. Kang, T. -J. Ha et al., "All-solution-processed biosensors for detection of cortisol down to uM concentration", 6th International conference on Biosensing technology, June 2019
103) J. Jeon, T. -J. Ha et al.,"Solution-processed wearable biosensors for exhaled breath monitoring systems", 6th International conference on Biosensing technology, June 2019
102) *T. -J. Ha (INVITED), "Advanced nano-materials for wearable sensor applications", MRS-K, May 2019
101) B. Kang, T. -J. Ha et al., "Wearable motion sensors based on functional nano-composites", The Korean Sensors Society, Mar. 2019
100) *T. -J. Ha (INVITED), "Device physics of high performance inorganic and hybrid thin-film transistors", ENGE, Nov. 2018 (Best poster paper award)
99) *T. -J. Ha (INVITED), "High performance thin-film transistors based on advanced materials for next generation displays", IMID, Aug. 2018
98) B. Kang, T. -J. Ha et al., "Flexible piezocapacitive pressure sensors fabricated by all-solution-process for human-machine interfaces", ICMAP, July, 2018
97) *B. Yu, T. -J. Ha et al., "Characteristics of solution-processed high-k dielectrics for high performance electronic devices", NanoKorea, July, 2018
96) *B. Yu, T. -J. Ha et al., "Charge transport studies on solution-processed metal-oxide thin-film transistors for display backplanes", NanoKorea, July, 2018
95) J. Jeon, T. -J. Ha et al., "Carbon nanotube based bio-electrodes for surface electromyogram sensors", ICSM, July, 2018
94) B. Kang, T. -J. Ha et al., "Wearable carbon nanotube based biosensors for healthcare monitoring systems", ICSM, July, 2018
93) B. Kang, T. -J. Ha et al., "Morphological planarization of perovskite absorbers using a phenyl-C61-Butyric acid methyl ester", WCPEC-7, June, 2018
92) *J. Jeon, T. -J. Ha et al., "Solution-processed high-k dielectrics films for wearable neuroelectronics", ECS, May, 2018
91) B. Kang, T. -J. Ha et al., "High performance flexible bio-electronics for electrophysiological recordings", ECS, May, 2018
90) B. Kang, T. -J. Ha et al., "Wearable triboelectric energy harvesters for brain-machine interfaces", NGPT, May, 2018
89) *B. Yu, T. -J. Ha et al., "High performance solution-processed indium-gallium-zinc-oxide thin-film transistors on flexible substrates operating at low-voltage", KCS, Feb. 2018.
88) *J. Jeon, T. -J. Ha et al., "Solution-processed multi-wall carbon nanotube sensors for hydrogen peroxide gas detection", KCS, Feb. 2018
87) B. Kang, T. -J. Ha et al., "Wearable single-wall carbon nanotube thin-film transistor arrays for neuro-interfaces", ICAE, Nov. 2017
86) B. Yu, T. -J. Ha et al., "Surface characteristics of dielectric films by contact angle measurements", ICAE, Nov. 2017
85) B. Kang, T. -J. Ha et al., "A patterning technique to improve device performance of carbon nanotube based transistors for electroencephalogram sensor systems", ICAE, Nov. 2017
84) B. Yu, T. -J. Ha et al., "Characteristics of high-k aluminium oxide thin films fabricated by solution-process for intelligent neural interface", ICAE, Nov. 2017
83) *B. Kang, T. -J. Ha et al., "Solution-processed organic/inorganic nanocomposites for high performance human-interactive sensors", ICMEM, Nov. 2017
82) B. Kang, T. -J. Ha et al., "Wearable electrophysiological sensors for healthcare monitoring systems", Annual meeting of the Korean Biochip society, Nov. 2017
81) *B. Yu, T. -J. Ha et al., "Solution-processed metal-oxide semiconductors for neuromorphic electronics", IWOE24, Sept. 2017
80) B. Kang, T. -J. Ha et al., "Patch-type carbon-based sensors for electromyogram", ICFPE, Sept. 2017
79) *H. Shin, T. -J. Ha et al., "Trapping/Detrapping analysis on carbon nanotube thin film transistors using non-quasi static measurement", IMID, Aug. 2017,
78) *B. Yu, T. -J. Ha et al., "High-quality boron nitride thin films for high-resolution transparent displays", ICANS27, Aug. 2017
77) *T. -J. Ha (INVITED), "Material design and structural integration for high performance electronics", APSMR, July. 2017 (Outstanding achievement award)
76) B. Kang, T. -J. Ha et al., "Improving stability of perovskite solar cell employing fluorocarbon encapsulation", APSMR, July. 2017
75) B. Kang, T. -J. Ha et al., "Ultra low voltage operating single-walled carbon nanotube thin-film transistors", NanoKorea, July. 2017
74) B. Park, T. -J. Ha et al., "Wearable nanomaterial-based glucose biosensors with functionalized glucose oxidase", NanoKorea, July. 2017
73) B. Yu, T. -J. Ha et al., "Interfacial engineering on solution-processed boron nitride thin films for optoelectronics", NanoKorea, July. 2017
72) B. Yu, T. -J. Ha, "Material analysis of 2D boron nitride thin films for high performance memory devices", SCANDEM, June. 2017
71) *B. Park, T. -J. Ha et al., "Structural integration of boron nitride thin films for carbon-based transistors", ICMFM, May. 2017
70) B. Park, T. -J. Ha et al.,"Patch-type nitric oxygen gas sensor based on functionalized single-wall carbon nanotube thin films", KCS, Feb. 2017(Best poster award)
69) B. Park, T. -J. Ha, et al., "High thermoelectric properties of solution-processed single-wall carbon nanotube/polymer composite films on flexible substrates", ENGE, Nov. 2016
68) J. Jeon, T. -J. Ha, et al., "High performance ambipolar thin-film transistors based on solution-processed hybrid bilayers of carbon-nanotube/indium-gallium-zinc-oxide semiconductors", ENGE, Nov. 2016
67) J. Jeon, T. -J. Ha, "Solution-processed nanoscale carbon nanotube thin-film transistors fabricated by electromigration", ECS prime, Oct. 2016.
66) J. Jeon, T. -J. Ha, et al., "Characteristics of boron nitride thin films for high performance nanoelectronics", ICMAP, Sep. 2016.
65) J. Jeon, T. -J. Ha," Wearable pressure sensors based on electronic nanomaterials with tunable sensitivity", IWPMA-ECMD, Aug. 2016. (IUVSTA award)
64) B. Park, T. -J. Ha et al.,"Methlyammonium lead mixed halide perovskite films processed with a new composition", IVC-20, Aug. 2016.
63) J. Jeon, T. -J. Ha et al., "Improved device performance of boron-nitride-based thin-film transistors", IVC-20, Aug. 2016.
62) *J. Jeon, T. -J. Ha," High performance solution-processed carbon nanotube thin-film transistors by employing an interacting film", ICEIT, Jan. 2016.
61) J. Jeon, T. -J. Ha, "Improved device performance of field-effect transistors based on graphene/fluoropolymer advanced materials", ICAE, Nov. 2015
60) J. Jeon, T. -J. Ha, "Solution-processed carbon nanotube thin-film transistors for flexible display backplanes", IWFPE, Nov. 2015.
59) J. Jeon, T. -J. Ha, "High performance zinc-tin-oxide thin-film transistors encapsulated with fluoropolymer for transparent displays", IMID, Aug. 2015.
58) *S. Kim, T. -J. Ha, P. Sonar, A. Dodabalapur, "Sub-threshold charge transport in polymer/organic field-effect transistors", SPIE, Aug. 2015.
57) J. Jeon, T. -J. Ha, "Study on the density of trap states in semiconductor", ICDS, July, 2015.
56) J. Jeon, T. -J. Ha, "Wearable strain/pressure sensors based on nanomaterials with tunable sensitivity", NanoKorea, July, 2015
55) J. Jeon, T- J. Ha, " Photo-induced electrical instability in transparent electronics", PIERS, July, 2015.
54) H. Shin, S. -Y. Park, T. -J. Ha, C. Lee, "Non-quasi static measurement in random network carbon nanotube thin-film transistors for next-generation displays", SID, June, 2015.
53) *T. -J. Ha, "Device physics of organic and 2D field-effect transistors", 26th IC ME&D, May, 2015
52) *S. Kim, T. -J. Ha, P. Sonar, A. Dodabalapur, "Sub-threshold charge transport in polymer transistors", APS, March, 2015.
51) S. -M. Koo, T. -J. Ha, " Reduced charge transfer on device characteristics in carbon nanotube based thin-film transistors", ITC, Feb. 2015
50) *T. -J. Ha, "Advanced Material based thin-film transistors for printable electronics", IWC Materials for future IT, Dec. 2014
49) T. -J. Ha, J. Lee, D. Akinwande, A. Dodabalapur, "Fluoro-carbon encapsulation on 2-dimensional material based field-effect transistors with improvement in device performance for next-generation displays", IMID, Korea, Aug. 2014 (Outstanding poster award)
48) J. Kim, K. Nam, T-. J. Ha, W. Cho, H. Chung, "Rectifying characteristics of sol-gel derived TiOx thin films for 1D-1R resistance switching memory applications", SSDM, Japan, Sep. 2014
47) T. -J. Ha, J. Kim, W. Cho, H. Chung, "A comparison of photo-induced hysteresis between hydrogenated amorphous silicon and amorphous IGZO thin-film transistors", SSDM, Japan, Sep. 2014
46) T. Lee, S. Koo, T. -J. Ha, "Human interactive sensors based on CNT/conductive nanoparticle composites", ICMAP, Korea, July, 2014
45) H. Shin, T. -J. Ha, C. Lee, "Velocity distributions of charge carriers in carbon nanotube thin-film transistors by using non-quasistatic measurement", ICMAP, Korea, July, 2014 (Best poster award)
44) J. Son, K. Choi, T. -J. Ha, "Solution-processed carbon nanotube thin-film transistors for flexible displays", KIEEME, Korea, June, 2014
43) *A. Dodabalapur, P. Sonar, and T. -J. Ha, “High-performance transistors based on donor-acceptor polymers”, 247th ACS National Meeting & Exposition, Dallas, USA, March, 2014.
42) *T. -J. Ha, J. Lee, L. Tao, I. Kholmanov, R. S Ruoff, P. J. Rossky, D. Akinwande, and A. Dodabalapur, “Graphene/fluoropolymer hybrid materials with enhancement of all device properties for improved field-effect transistors”, IEEE IEDM 2013, Washington DC, USA, Dec. 2013.
41) *J. Lee, T. -J. Ha, H. Li, R. S Ruoff, D. Akinwande, and A. Dodabalapur, “High-performance flexible nanoelectronics: 2D atomic channel materials for low-power digital and high-frequency analog devices”, IEEE IEDM 2013, Washington DC, USA, Dec. 2013.
40) *P. Sonar, T. -J. Ha, T. Foong, S. P. Singh, A. Dodabalapur, “Innovative p-functional printable low band gap polymers for ambipolar organic field effect transistors”, The 15th Asian Chemical congress, Singapore, August, 2013
39) *T. -J. Ha, J. Lee, D. Akinwande, P. J. Rossky, A. Dodabalapur, “Transformation of the Electrical Characteristics of Graphene Field-Effect Transistors with Fluoropolymer”, SPIE, San Diego, USA, August, 2013
38) *T. -J. Ha, and A. Dodabalapur, “Photo Stability of Solution-Processed Low-Voltage High Mobility Zinc-Tin-Oxide/Zirconium-Oxide Thin-Film Transistors for Transparent Display Applications”, Electronic materials conference (EMC), University of Notre Dame, South Bend, USA, June, 2013
37) *P. Sonar, T. -J. Ha, T. Foong, Z. -E. Ooi, E. L. Williams, A. Dodabalapur, “New high performance organic semiconducting printable materials using old diketopyrrolopyrrole dye based conjugated building blocks”, International conference on materials for advanced technologies (ICMAT), Suntec Singapore, June 2013
36) *T. -J. Ha, J. Lee, B. Worley, D. Akinwande, P. Rossky, and A. Dodabalapur, “The Restorative Effects of Fluoropolymer Coating on the Electrical Characteristics of Graphene Field-Effect Transistor”, Nano Night, Austin, USA, May, 2013
35) *A. Dodabalapur, T. -J. Ha, and P. Sonar, “Charge carrier transport in advanced DPP based polymer thin-film transistors”, The Electrochemical society (ECS) , Toronto, Canada, May, 2013
34) *P. Sonar, T. -J. Ha, T. Foong, A. Dodabalapur, “Push-Pull Based Novel p-Functional Polymeric Semiconductors for Printed Flexible Electronics”, ECS , Toronto, Canada, May, 2013
33) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge transport and device physics in high mobility donor-acceptor polymer based transistors”, MRS spring, San Francisco, USA, April, 2013.
32) *D. A. Duarte, T. -J. Ha, X. Su, B. A. Yin, S.V. Sreenivasan, A. Dodabalapur, “Nanomanufacturing of thin-film electronic circuits”, NASCENT 1st meeting, LA, USA, March, 2013
31) *J. Lee, K. N. Parrish, Sk. Fahad Chowdhury, T. -J. Ha, Y. Hao, L. Tao, A. Dodabalapur, D. Akinwande, “ State-of-art Graphene Transistors on Hexagonal Boron Nitride, High-k, and Polymeric Films for GHz Flexible Analog Nanoelectronics”, IEEE IEDM, San Francisco, USA, Dec. 2012.
30) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Electronic properties and charge carrier transport on advanced DPP polymer thin-film transistors”, MRS fall, Boston, USA, November, 2012 .
29) *P. Sonar, S. P. Singh, Y. Li, Z. -E. Ooi, T. -J. Ha, E. L. Williams and A. Dodabalapur, “Diketopyrrolopyrrole –A Versatile Conjugated Building Block for Organic Electronics”, International Conference on Ocean Energy (ICOE), Dublin, Ireland, October, 2012.
28) *T. -J. Ha, J. Lee, Sk. Fahad Chowdhury, D. Akinwande, and A. Dodabalapur, “Material properties and field-effect transistor characteristics of hybrid organic/graphene active layers”, SPIE Optics+photonics, San Diego, USA, August, 2012.
27) *A. Dodabalapur, P. Sonar, T. -J. Ha, “Charge transport in donor acceptor polymer field-effect transistors”, SPIE, San Diego, USA, August, 2012.
26) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Understanding dual-gate polymer field-effect transistors”, DRC, Pennsylvania, USA, June, 2012.
25) *T. -J. Ha, A. Lee, D. Akinwande, and A. Dodabalapur, “Hybrid organic graphene field-effect transistors”, EMC, Pennsylvania, USA, June, 2012.
24) *L. Schulz, C. Lee, S. Jang, T. -J. Ha, B. Kim, and A. Dodabalapur, “High mobility in FETs Based on Sol-Gel Processed Transparent Amorphous Semiconducting Oxides”, MRS Spring, San Francisco, USA, April, 2012.
23) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge Transport and Density of Trap States in Balanced High Mobility Ambipolar Organic Thin-Film Transistors”, MRS Fall, Boston, USA, December 2, 2011.
22) *A. Dodabalapur, T. -J. Ha, C. Lee, P. Sonar, and S. P. Singh, “Charge Transport in Polymer and Amorphous Oxide Transistors”, International workshop on physics of semiconductor devices (IWPSD) Plenary, Kanpur, India, December,2011.
21) *P. Sonar, S. P. Singh, Y. Li, Z. -E. Ooi, T. -J. Ha, and A. Dodabalapur, “Diketopyrrolopyrrole Based Donor-Acceptor Organic Semiconductors for High Performance Printed Electronics”, Materials Science, Metal & Manufacturing (M3), Singapore, Singapore, December, 2011.
20) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge carrier velocity distributions in polymer thin-film transistors”, IMID, Seoul, Korea, October, 2011.
19) * P. Sonar, S. P. Singh, Y. Li, Z. -E. Ooi, T. -J. Ha, Z. Chen, A. Dodabalapur, “Diketopyrrolopyrrole based solution porcessable organic semiconductors for high performance organic electronics”, SPIE Optics+photonics, San Diego, USA, August, 2011.
18) *T. -J. Ha, P. Sonar and A. Dodabalapur, “Charge Transport and Velocity Distribution in High Mobility Polymer Thin Film Transistors based on Diketopyrrolopyrrole-naphthalene Copolymer”, MRS spring, San Francisco, USA, April, 2011.
17) *T. -J. Ha, P. Sonar, S. P. Singh, A. Dodabalapur, “Charge transport and velocity distribution in ambipolar organic thin film Transistors based on a diketopyrrolopyrrole-benzothiadiazole copolymer”, American Physical Society (APS), Dallas, USA, March, 2011.
16) *A. Dodabalapur, C. Lee, T. -J. Ha, B. Cobb, P. Sonar, S. P. Singh, and L. Ferlauto, “New approaches to study charge transport in organic and inorganic thin-film semiconductors”, Symposium on Organic and Polymer Electronics, Singapore, Singapore, December, 2010.
15) *T. -J. Ha, S. Kim, J. Lee, S. Lee, H. Park and M. -K. Han, “Hysteresis Phenomenon of oxide-based TFTs as transparent devices under the light illumination”, IDW, Miyazaki, Japan, December 9, 2009. (Best poster award)
14) *T. -J. Ha, S. Kim, S. Choi, S. Lee, H. Park and M. -K. Han, “ The Instability of Oxide-based Thin Film Transistors caused by the Negative Gate Bias Stress under the Light Illumination”, AM-FPD, Nara, Japan, July, 2009. .(Excellent oral presentation)
13) *T. -J. Ha, H. Park, S. Lee, S. Kim, and M. -K. Han, “ The Effect of Light on Amorphous Silicon Thin Film Transistors based on Photo-Sensor Applications”, IMID, Kintex, Korea, October, 2009.
12) *T. -J. Ha, S. Kim, S. Choi, J. Lee, H. Park and M. -K. Han, “The Investigation on Hysteresis Phenomenon of hydrogenated amorphous Silicon TFTs based on AMOLED under the Dark and the illuminated Condition”, Nordic Semiconductors meeting (NSM), Reykjavik, Iceland, June, 2009.
11) *T. -J. Ha, H. Park, S. Kuk, D. Kang and M. -K. Han, ” The Effect of Light under Electrical Bias Stresses on Amorphous Silicon Thin Film Transistors as Photo Sensor”, IDW, Niigata, Japan, December, 2008
10) *T. -J. Ha, S. Park and M. -K. Han “Suppression of SPC-Si TFT leakage current effect on active matrix displays by employing an improved circular switch”, The 15th KCS, Bogwang, Korea, February, 2008.
9) *H. Park, T. -J. Ha, S. Ji, J. Lee, B. Lee, B. You, N. Kim and M. -K. Han,” A New Touch Sensitive Active Matrix Display with Embedded Light Sensors”, IDW, Niigata, Japan, December, 2008.
8) W. Lee, T. -J. Ha, H. Park, J. Lee and M. -K. Han, “Touch Screen Panel by using Liquid Crystal Capacitance Variation embedded in LTPS AMLCD”, IMID, Kintex, Korea, October, 2008.
7) S. Kim, S. Han, T. -J. Ha, S. Kuk, D. Kang and M. -K. Han, "Nanocrystalline Silicon Thin Film Transistor Fabricated without any Substrate Heating for a Flexible Display", SID, LA, USA, May, 2008.
6) H. Park, T. -J. Ha, D. Woo, K. Shin, C. Kim and M. -K. Han "A New Monolithic Polysilicon Ambient Light Sensor System with Wide Dynamic Range for Active-Matrix Displays by Employing an Adaptive Sensitivity Control method", SID, LA, USA, May, 2008.
5) W. Lee, H. Park, T. -J. Ha, J. Lee and M. -K. Han, "Touch Screen Panel embedded in AMLCD by using Liquid Crystal Capacitance Variation", AM-FPD, Tokyo, Japan, July, 2008.
4) H. Shin, W. Lee, S. Park, T. -J. Ha, M. -K. Han, "New Fast Threshold Voltage Detecting Pixel Scheme for High Resolution and Large Area AMOLED Display", IDW, Sapporo, Japan, December, 2007.
3) H. Park, S. Kuk, T. -J. Ha, H. Shin and M. -K. Han, "A New Poly-Si TFT Pixel for Digital Driving AMOLED Displays Without Any Storage Capacitors," IDW, Sapporo, Japan, December, 2007.
2) S. Kim, S. Han, T. -J. Ha and M. -K. Han "Effect of plasma pre-treatment on nanocrystalline silicon film deposited without substrate heating", IDW, Sapporo, Japan, December, 2007.
1) S. Choi, S. Park, Won. Lee, T. -J. Ha, and M. -K. Han, "Hysteresis Phenomenon in Sequential Lateral Solidification poly-Si Thin Film Transistor at 213K", MRS spring, San Francisco, USA, March, 2008.
Tae-Jun Ha, Device physics of organic and graphene field-effect transistors, Lambert Academic Publishing, May, 2013
Tae-Jun Ha, Sustainable energy, Ch. 8-11, Donghwa Technology Publishing Co. Sep. 2015
Tae-Jun Ha and Jongho Lee, Graphene: charge transport and flexible nanoelectronics, Donghwa Technology Publishing Co. Jan. 2016
Tae-Jun Ha et al., Book chapter, Zero dimensional carbon nanomaterials: Material design methods, properties and applications, Elsevier, Jan. 2024
Tae-Jun Ha et al., Book chapter, Metal oxide based thin film transistors (IGZO) in Electric and Electronic Applications of Metal Oxides, Elsevier, Feb, 2024
PATENT
1) T. –J. Ha, J. Lee, D. Akinwande, A. Dodabalapur, Method to improve performance characteristics of transistors comprising graphene and other two-dimensional materials, Patent 5119-19900 (Serial No. 61/865374, Aug. 13, 2013)
2) T. –J. Ha, J. -Y. Jeon, Motion detection sensor and manufacturing method of the same, 10-1753384, June 2017.
3) T. –J. Ha, B. -S. Park, Human-interactive drone remote control systems based on patch-typed strain sensor and pressure sensors, 10-1990494, Jan. 2017.
4) T. –J. Ha, J. -Y. Jeon, Method for high quality solution-processed boron nitride thin film and its application in electronic devices, 10-2023106, Feb. 2017.
5) T. –J. Ha, B. -S. Park, J. -Y. Jeon, Low-temperature, low-pressure solution-processed polymer transfer media and transfer optimization method for laser printer, 10-1928355, Feb. 2017.
6) T. –J. Ha, High Performance Solution-Processed Thin-Film Transistors Employing Ferroelectric Copolymers Fabricated at Low Temperature for Transparent Flexible Displays and encapsulation process method, 10-2016157, June 2017.
7) T. –J. Ha, J. Jeon, B. Park, Solution-Processed Carbon/Fluoropolymer Field-Effect Transistors and Charge Transport Improvement Method, 10-2023111, Aug. 2017.
8) T. –J. Ha, B. Yu, Fabrication method of solution-processed high quality Al2O3/BN dielectric films for high performance IGZO TFTs, and IGZO TFTs thereof, 10-2014132, Nov. 2017.
9) T. –J. Ha, B. -C. Kang, Method of manufacturing electrode for measuring biosignal based on low temperature solution process, electrode for measuring biosignal, and apparatus for measuring biosignal using same, 10-2026850, Jan. 2018
10) T. –J. Ha, B. -C. Kang, B. -S. Park, Real-time glucose monitoring sensor system, and method of manufacturing glucose sensor based on low temperature solution process, 10-2077306, Feb. 2018
11) T. –J. Ha, B. -C. Kang, Flexible display and method of manufacturing thin film transistor based on low temperature solution process, 10-2023103, March 2018
12) T. -J. Ha, D. Chu, B. -C. Kang, Memristor Applicable to Neuromorphic System and Method of Manufacturing Memristor Consisting of Metal-oxide Films Fabricated by Solution Process, 10-2117658, April 2018
13) T. –J. Ha, B. -C. Kang, B. -S. Yu, Patterning Method Using Selective Surface Treatment That Improves Performance of Thin-Film Transistor Fabricated By Solution Process, 10-2079317, April, 2018
14) T. –J. Ha, B. Yu, J. Kim, Triple Point Recognition Device Based on Flexible Material for Object Recognition for Table Top Touch Screen, 10-2117659, July, 2018
15) T. –J. Ha, D. W. Kang, B. -C. Kang, S. Lee, Passivation Layer for Electronic Device with High Stability Fabricated By Solution Process and Fabrication Method Thereof, 10-2139797, Sep. 2018
16) T. –J. Ha, Y. Byun, J. -Y. Jeon, B. -C. Kang, High Performance Gas Sensor Capable of Sensing Nitric Oxide at Parts-Per-Billion Level and Fabrication Method by Solution Process, 10-2139802, Feb. 2019
17) T. –J. Ha, Y. Kim, J. -Y. Jeon, B. -S. Yu, Method of Manufacturing High Performance Ambipolar Transistor with Stack Configuration of Hybrid SWCNT and IGZO Based on Low Temperature Solution Process, 10-2199223, June 2019
18) T. –J. Ha, B. -S. Yu, Flexible Resistive RAM Based on Oxide Thin Film Fabricated by Low Temperature Solution Process with Oxygen Annealing and Method of Fabricating The Same, 10-2222884, July 2019
19) T. –J. Ha, T. Chung, B. -C. Kang, Highly-Sensitive Capacitive-Type Pressure Sensor for Detection of Motion Embedded into Automatic Safety Shutdown System of Cutting Process Equipment, 10-2242936, Nov. 2019
20) T. –J. Ha, M. Deshmukh, B. -C. Kang, Non-Enzymatic Electrochemical Glucose Sensor Based on Metal-Polymer-Carbon Nanocomposite Electrode and Manufacturing Method Thereof, 10-2338344, Dec. 2019
21) T. –J. Ha, J. Y, Jeon, B. -C. Kang, Flexible pH Sensor Based on Nanocomposite of Single-Wall Carbon Nanotube and Nafion Fabricated by Screen-Printing Process, 10-2303276, Jan. 2020
22) T. –J. Ha, M. Deshmukh, B. -C. Kang, Highly Stable and Reliable Dispersion of Single-Wall Carbon Nanotubes by Amphiphilic Copolymer Microsurfactant, and Manufacturing Method Thereof, 10-2381946, Jan. 2020
23) T. –J. Ha, C. Chen, C. Chen, T. Lee, B. Kang, Photocatalyst Based on Carbon Nitride Nanocomposite and Manufacturing Method Thereof, 10-0053819, May 2020
24) T. –J. Ha, S. -J. Park, J. -Y. Jeon, B. -C. Kang, Wearable temperature sensors based on metal-ion doped high-k metal-oxide dielectrics operating at low-voltage and high-frequency for healthcare monitoring systems, 10-2424918, Aug. 2020.
25) T. –J. Ha, H. Choi, B. -C. Kang, All-solution-processed on-skin electronics with ultra-conformal contact through self-reconfiguration and manufacturing method thereof, 10-2466447, Oct. 2020
26) T. –J. Ha, J. -Y. Jeon, S. -J. Park, Room-temperature operating hydrogen gas sensor based on metal-oxide nanostructure functionalized with metal nanoparticle by microwave absorption and manufacturing method thereof, 10-0166847, Dec, 2020
27) T. –J. Ha, B. -C. Kang, S. -J. Park, Wearable pressure/touch sensors based on hybrid dielectric composites and flexible electrodes, 10-0100586, July, 2021
28) T. –J. Ha, J. Jeon, S. Park, Extremely high sensitive flexible gas sensor and manufacturing method of the same, 10-0113766, Aug. 2021
29) T. –J. Ha, B. Kang, B. Hedau, S. Park, Metal-Carbon Matrix Structure Body and Dopamine Detecting Sensor Comprising the Same, 10-0010195, Jan. 2022
30) T. –J. Ha, B. Kang, S. Park, H. Choi, Multilayer sturucture and manufacturing method thereof, electricity generating element comprising said multilayer structure and manufacturing method thereof, 10-0026229, Feb. 2022
31) T. –J. Ha, B. Kang, B. Hedau, A composite material, manufacturing method thereof and an electricity generating element comprising the same, 10-0080521, Jun 2022
32) T. –J. Ha, S. -J. Park, Nitrogen Dioxide Detecting Sensor Based On Molybdenum Disulfide Field Effect Transistor, Method For Manufacturing The Same, and Method For Detecting Nitrogen Dioxide Using The Same, 10-0190090, Dec. 2022.
33) T. –J. Ha, S. -J. Park, Thin-film transistor and manufacturing method thereof, 10-0017018, Feb. 2023.
34) T. –J. Ha, B. Kang, B. Hedau, Catalyst Comprising Carbon Quantum Dot And Metal-Organic Framework, Use Thereof, and Manufacturing Method Thereof, 10-0026978, Feb. 2023.
35) T. –J. Ha, S. -J. Park, M. Kim, Flexible Humidity Sensor and Manufacturing Method of the same, 10-0098696, July. 2023.
36) T. –J. Ha, S. R. Park, S. -J. Park, Transparent heaters based on nanocomposites comprising metal nanostructures and Mxene and The manufacturing method thereof, 10-0144601, Oct. 2023
37) T. –J. Ha, M. -H. Kim, S. -J. Park, Fluorine-based resin thin films with metal-organic framework for triboelectric nanogenerator, and the triboelectric nanogenerator comprising the same, 10-0029383, Feb. 2024
38) T. –J. Ha, B. Hedau, S. -J. Park, Electrocatalyst based on rare metal doped metal covalent organic framework and electrode for oxygen reduction reaction comprising the same, 10-0029419, Feb. 2024
JOURNAL
"ORR ~" submitted
"ReRAM ~" submitted
"Gelatin~" submitted
"Transparent~" submitted
"IGZO~" submitted
"ATZ~" submitted
2023
116) P. Sayyad, S. -J. Park, T. -J. Ha*, Bioinspired nanoplatforms for human-machine interfaces: recent progress in materials and device applications, Biotechnology Advances 70, 108297
115) B. Hedau, S. -J. Park, B. Kang, T. -J. Ha*, Bifunctional carbon quantum dot-embedded metal-organic framework nanohybrid as a highly efficient electrocatalyst for water splitting and CO2 reduction, Carbon 216, 118527 (OUTSIDE FRONT COVER FEATURED)
114) M. -H. Kim, S. -J. Park, T. -J. Ha*, Wearable Triboelectric Nanogenerators Based on Printed Polyvinylidene Fluoride Films Incorporated with Cobalt-Based Metal-Organic Framework for Self-Powered Mobile Electronics, Energy & Environmental Materials (in press) (Highlighted in DAILY SMART)
113) S. -J. Park, M. -H. Kim, T. -J. Ha*, All-printed wearable humidity sensor with hydrophilic polyvinylpyrrolidone film for mobile respiration monitoring, Sensors & Actuators B: Chemical 394 (1) 134395 (Highlighted in MT & NATE)
112) S. Wang, B. -C. Kang, S. -J. Park, T. -J. Ha*, L. Jagadamma*, P3HT vs Spiro-OMeTAD as a hole transport layer for halide perovskite indoor photovoltaics and self-powering of motion sensors, Journal of Physics: Materials, 6 (2), 024004
111) S. -J. Park, T. -J. Ha*, MoS2 monolayers functionalized with gold nanoparticles using microwave absorption for FET-type NO2 gas sensors in ppb-levels, Applied Surface Science, 622 (15), 156959
110) S. -J. Park, T. -J. Ha*, Effects of Sn Doping on the Electrical Performance and Stability of Sub-V Operating Metal-Oxide Thin-Film Transistors Fabricated by Oxygen Annealing, IEEE Electron Device Letters 44 (4), pp.642-645
109) M. Deshmukh, S. -J. Park, H. Thorat, G. Bodkhe, A. Ramanavicius, S. Ramanavicius, M. Shirsat, T. -J. Ha*, Advanced Energy Materials: Current Trends and Challenges in Electro- and Photo-Catalysts for H2O splitting (Review article), Journal of Industrial and Engineering Chemistry 119 90-111
2022
108) B. -C. Kang, S. -J. Park, H. Choi, T. -J. Ha*, All-solution-processed wearable moist-electric generators based on engineered nanocomposites of carbon nanotube and gelatin incorporated with PEDOT:PSS interfacial blocking layer, Nano energy 104, Part B (15), 107890 (Highlighted in Joongang Ilbo)
107) B. Hedau, B. -C. Kang, T. -J. Ha*, "Enhanced triboelectric effects of self-poled MoS2-embedded PVDF hybrid nanocomposite films for bar-printed wearable triboelectric nanogenerators", ACS Nano 16 (11) 18355-18365 (SUPPLEMENTARY JOURNAL COVER FEATURED) (Highlighted in Joongang Ilbo)
106) S. -J. Park, T. -J. Ha*, Microwave-irradiated metal-oxide thin-film transistors with recessed gate structure and their applications in logic circuits, IEEE Transactions on Electron Devices 70 (1) 99-104
105) B. Hedau, B. -C. Kang, S. -J. Park, T. -J. Ha*, "High-Performance Non-Enzymatic Electrochemical Dopamine Sensors Based on Metal-Organic Framework Derived Co-C-Matrix Nanoplatforms", Journal of The Electrochemical Society 169 (8), 087504
104) S. -J. Park, T. -J. Ha*, " Sol-gel-based metal-oxide thin-film transistors for high-performance flexible NMOS inverters", Journal of Alloys and Compounds
912 (15), 165228
103) B. -C. Kang, T. -J. Ha*, "Non-Invasive Electroencephalogram Sensors Based on All-Solution-Processed Trapezoidal Electrode Array", Applied Physics Letters 120, 213301
102) S. -J. Park, T. -J. Ha*, "Improved electric contact of recessed source and drain electrodes for sol-gel-based thin-film transistors consisting of amorphous ZrO2 and IGZO fabricated by microwave-annealing", Applied Physics Letters 120, 153301
101) J. -Y. Jeon, S. -J. Park, T. -J. Ha*, " Wearable nitrogen oxide gas sensors based on hydrophobic polymerized ionogels for the detection of biomarkers in exhaled breath", Sensors & Actuators B: Chemical, 360, 131672
100) H. Shin, S. -J. Park, B. -C. Kang, T. -J. Ha*, "Comprehensive analysis of two-dimensional charge transport in thin-film transistors based on random networks of single-wall carbon nanotubes using transient measurements", Nano Research 15, 1524-1531
2021
99) S. -J. Park,J. -Y. Jeon, T. -J. Ha*, "Wearable humidity sensors based on bar-printed poly(ionic liquid) for real-time humidity monitoring systems", Sensors & Actuators B: Chemical 354, 131248
98) B. -C. Kang, S. -J. Park, T. -J. Ha*, " Wearable Pressure/Touch Sensors Based on Hybrid Dielectric Composites of Zinc Oxide Nanowires/Polydimethylsiloxane and Flexible Electrodes of Immobilized Carbon Nanotube Random Networks" ACS Applied Materials & Interfaces 13 (35), 42014-42023 (SUPPLEMENTARY JOURNAL COVER FEATURED)
97) B. -C. Kang, H. Choi, S. -J. Park, T. -J. Ha*, "Wearable triboelectric nanogenerators with the reduced loss of triboelectric charges by using a hole transport layer of bar-printed single-wall carbon nanotube random networks", Energy 233 (15), 121196
96) J. -Y. Jeon, S. -J. Park, T. -J. Ha*, "Functionalization of zinc oxide nanoflowers with palladium nanoparticles via microwave absorption for room temperature- operating hydrogen gas sensors in the ppb-level", ACS Applied Materials & Interfaces 13 (21), 25082-25091
95) H. Choi, B. -C. Kang, T. -J. Ha*, "Self-reconfigurable high-weight-per-volume-gelatin films for all-solution-processed on-skin electronics with ultra-conformal contact", Biosensors and Bioelectronics 184 (15), 113231
94) M. Deshmukh, S. -J. Park, B. Hedau, T. -J. Ha*, "Recent progress in solar cells based on carbon nanomaterials (Review article)", Solar energy 220 (15), 953-990.
93) S. -J. Park, J. -Y. Jeon, B. -C. Kang, T. -J. Ha*, "Wearable temperature sensors based on lanthanum-doped aluminum-oxide dielectrics operating at low-voltage and high-frequency for healthcare monitoring systems" Ceramics International 47 (4), 4579-4586
2020
92) M. Deshmukh, B. -C. Kang, J. -Y. Jeon, T. -J. Ha*, "Stable Dispersions of Single-Wall Carbon Nanotubes Using Self-Assembled Amphiphilic Copolymer Surfactants for Fabricating Wafer-Scale Devices", ACS Applied Nano Materials 3 (9), 8829-8839
91) S. -J. Park, M. Deshmukh, B. -C. Kang, J. -Y. Jeon, C. Chen*, T. -J. Ha*, "A Review of Advanced Electronic Applications Based on Carbon Nanomaterials (Review article)", ECS Journal of Solid State Science and Technology, 9, 071002
90) M. Deshmukh, S. -J. Park, B. -C. Kang, T. -J. Ha*, "Carbon Nanohybrids for Advanced Electronic Applications (Review article)", Physica Status Solidi A: Applications and Materials Science, 217 (17), 2000199
89) C. Zhong, T. Lee, J. Li, Y. Lai, T. -J. Ha*, C. Chen*, "Origin of the enhanced photocatalytic activity of graphitic carbon nitride nanocomposites and the effects of water constituents", Carbon 167 (15), 852-862
88) M. Deshmukh, B. -C. Kang, T. -J. Ha*, "Non-enzymatic electrochemical glucose sensors based on polyaniline/reduced-graphene-oxide nanocomposites functionalized with silver nanoparticles", Journal of Materials Chemistry C , 8, 5112-5123 (Added to an online collection to mark the Lunar New Year)
87) S. -J. Park, T. -J. Ha*, "Effects of interfacial dielectric layers on the charge transport characteristics in sol-gel based amorphous metal-oxide thin-film transistors", Thin Solid Films, 708 (31), 138113
86) J. -Y. Jeon , B. -C. Kang, T. -J. Ha*, "Flexible pH sensors based on printed nanocomposites of single-wall carbon nanotubes and Nafion", Applied Surface Science, 514, 145956
85) S. Park, B. Yu, J. -Y. Jeon , B. -C. Kang, T. -J. Ha*, "Sol-gel based zirconium dioxide dielectrics by oxygen-annealing at low temperature for highly stable and robust flexible resistive random access memory", Journal of Alloys and Compounds 825, 154086
84) B. -C. Kang, T. -J. Ha*, "Low Voltage Operating Complementary-type Graphene Inverters with an Interacting Layer of Solution -processed Fluorocarbon Copolymers", IEEE Electron Device Letters, 41 (3), 429-432
83) K. Yang, W. Lee, J. Jeon, T. -J. Ha*, Y. Kim*, "Controlling the visibility of embedded silicon solar cells in building-integrated photovoltaic windows using surface structure modification and metal-oxide back coating",Solar Energy, 197, 99-104
82) M. Deshmukh, J. Jeon, T. -J. Ha*, "Carbon nanotubes: An effective platform for biomedical electronics", Biosensors & Bioelectronics, 150, 111919
2019
81) B. -C. Kang, T. -J. Ha*, "Human-interactive drone system remotely controlled by printed strain/pressure sensors consisting of carbon-based nanocomposites", Composites Science and Technology, 182, 107784
80) S. Yoon, S. Ha, T. Moon, S. Jeong, T. -J. Ha*, H. Choi*, D. -W. Kang*, "Carbon Nanotubes Embedded poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) Hybrid Hole Collector for Inverted Planar Perovskite Solar Cells", Journal of Power Sources, 435, 226765
79) B. S. Yu, J. Y. Jeon, B. -C. Kang, W. Lee, Y. Kim*, T. -J. Ha*, "Wearable 1V operating thin-film transistors with solution-processed metal-oxide semiconductor and dielectric films fabricated by deep ultra-violet photo annealing at low temperature", Scientific Reports, 9, 8416
78) J. Y. Jeon, B. -C. Kang, Y. Byun*, T. -J. Ha*, "High-performance gas sensors based on single-wall carbon nanotube random networks for detection of nitric oxide down to ppb-level", Nanoscale 11, 1587-1594 (OUTSIDE FRONT COVER FEATURED) (Highlighted in Onedaily)
77) B. -C. Kang, T. -J. Ha*, "The improved performance molybdenum disulphide thin-film transistors operating at low voltage by solution-processed fluorocarbon encapsulation", Electronic Materials Letters , 15 (4), 391-395
76) J. Y. Jeon, B. -S. Yu, Y. -H. Kim*, T. -J. Ha*, "Solution-processed hybrid ambipolar thin-film transistors fabricated at low temperature", Electronic Materials Letters 15 (4), 402-408
75) S. -J. Park, B. -S. Yu, T. -J. Ha*, "The effect of crystalline aluminum oxide on device performance of solution-processed indium-gallium-zinc-oxide thin-film transistors operating at low voltage", Journal of Nanoscience and Nanotechnology, 19 (10), 6178-6182
2018
74) B. -C. Kang, B. -S. Park, T. -J. Ha*, "Highly sensitive wearable glucose sensor systems based on functionalized single-wall carbon nanotubes with glucose oxidase-nafion composites", Applied Surface Science, 470 (15), 13-18
73) S. Lee, T. -J. Ha*, D. -W. Kang*, "Mixed-Halide Lead-Tin Binary Perovskite Films with various Tin-content for Lead-reduced Solar Cells", Materials Letters 227 (15), 311-314
72) Y. Pan, T. Wan, H. Du, B. Qu, D. Wang, T. -J. Ha*, D. Chu*, "Mimicking synaptic plasticity and learning behaviours in solution processed SnO2 memristor", Journal of Alloys and Compounds 757, 496-503
71) B. C. Kang, S. Lee, D. -W. Kang*,T. -J. Ha*, "Improved stability in perovskite solar cells by solution-processed fluorocarbon passivation", IEEE Electron Device Letters, 39 (6) 843-846 (OUTSIDE FRONT COVER FEATURED)
70) P. Guan, Z. Xu, X. Lin, N. Chen, H. Tong, T. -J. Ha, D. Chu, "Recent Progress in Silver Nanowires: Synthesis and Applications (Review article)", Nanoscience and Nanotechnology Letters, 10 (2), 155-166
69) B. -S. Yu, T. -J. Ha*, "High dielectric performance of solution-processed aluminum oxide-boron nitride composite films", Electronic Materials Letters, 14 (5) 563-568
68) B. -S. Yu, D. -W. Kang*, T. -J. Ha*, "The surface analysis of dielectric thin films by contact angle measurements", Science of Advanced Materials, 10, 1310-1314 (OUTSIDE FRONT COVER FEATURED)
67) B. -S. Yu, T. -J. Ha*, "High-performance solution-processed IGZO thin-film transistors with Al2O3/BN composite dielectrics fabricated at low temperature", Physica Status Solidi A: Applications and Materials Science, 215 (12), 1700802
66) B. -C. Kang, T. -J. Ha*, "Improved device performance of solution-processed single-wall carbon nanotube transistors by a patterning technique using a selective surface treatment", Journal of Nanoscience and Nanotechnology 19, 1729-1733
65) B. -C. Kang, T. -J. Ha*, "Low-Voltage Operating Single-Wall Carbon Nanotube Thin-Film Transistors Using High Work Function Contacts on Flexible Substrates", Journal of Nanoscience and Nanotechnology 19, 1759-1763
64) B. -C. Kang, T. -J. Ha*, "Solution-processed single-wall carbon nanotube transistor arrays for wearable display backplanes", AIP Advances 8, 015305
63) B. -C. Kang, T. -J. Ha*, "Wearable carbon nanotube based dry-electrodes for electrophysiological sensors", Japanese Journal of Applied Physics 57, 05GD02
62) B. -C. Kang, J. -Y. Jeon, Y. T. Byun*, T. -J. Ha*, "Functionalized carbon nanotube sensors for the detection of sub-ppm nitric oxide gas", Journal of Nanoscience and Nanotechnology, 18 (9), 6562-6564
2017
61) K. Yang, J. Kim, H. Cho, T. -J. Ha*, Y. -H. Kim*,"Environment-stable solar window modules encapsulated with UV-curable transparent resin", Solar Energy, 158, 528-532
60) B. -C. Kang, T. -J. Ha*, "Single-Walled Carbon Nanotube Short-Channel Transistors Operating at Ultra-Low Voltages", IEEE Journal of the Electron Devices Society 5 (6), 525-529
59) B. -S. Park, S. Lee, S. Yoon, T. -J. Ha*, D. Kang*, "Methlyammonium Lead mixed halide films processed with a new composition for planar perovskite solar cells",Applied Surface Science, 427, Part B, 1 421-426.
58) S. Yoon, T. -J. Ha*, D. Kang*, "Improving performance and reliability of inverted planar perovskite solar cells with carbon nanotubes/PEDOT:PSS hybrid hole collector", Nanosacle, 9, 9754-9761
57) J. Kim, S. Choi, M. Kim, T. -J. Ha*, Y. -H. Kim*, "Strontium doping effects on the characteristics of solution-processed aluminum oxide dielectric layer and its application to low-voltage-operated indium-gallium-zinc-oxide thin-film transistors", Ceramics International, 43, 13576-13580
56) B. -S. Park, T. -J. Ha*, "Carbon-based pressure sensors with wavy configuration", IEEE Electron Device Letters, 38, (7), 979-982
55) B. -S. Yu, J. -Y. Jeon, A. Henry, and T. -J. Ha*, "Characteristics of low-temperature solution-processed boron nitride thin films for flexible nanoelectronics", Journal of Nanoscience and Nanotechnology,17, 8567-8570
54) J. -Y. Jeon, T. -J. Ha*, "Improvement in interfacial characteristics of low-voltage carbon nanotube thin-film transistors with solution-processed boron nitride thin films", Applied Surface Science, 413 (15), 118-122
53) R. Jaisutti, M. Lee, J. Kim, S. Choi, T. -J. Ha, J. Kim, H. Kim, S. K. Park, Y. -H. Kim, "Ultrasensitive Room-Temperature Operable Gas Sensors Using p‑Type Na:ZnO Nanoflowers for Diabetes Detection", ACS Applied Materials & Interfaces, 9 (10), 8796-8804
52) T. -J. Ha*, "Effect of gate-dielectrics on the electrical characteristics of solution-processed single-wall-carbon-nanotube thin-film transistors", Electronic Materials Letters, 13 (4), 287-291
51) T. -J. Ha*, "Restorative effect on electrical characteristics of graphene based field-effect transistors", Journal of Nanoscience and Nanotechnology, 17, 9142-9248.
2016
50) T. –J. Ha*, "High performance solution-processed zinc-tin-oxide thin-film transistors employing ferroelectric copolymers fabricated at low temperature for transparent flexible displays", IEEE Electron Device Letters, 37, 1586-1589
49) T. Kim, N. Seong, J. Ha, H. Kim, T. –J. Ha*, Y. Hong*, "The rapid and dense assembly of solution-processed single-wall carbon nanotube semiconducting films via an acid based additive in the aqueous dispersion", Journal of Materials Chemistry C, 4, 5461-5468
48) B. -S. Park, T. –J. Ha*, "Charge Transport Properties of Improved Reduced-Graphene-Oxide-Based Field-Effect Transistors", IEEE Electron Device Letters, 37 (6), 789-792
47) S. Kim, T. -J. Ha, P. Sonar, A. Dodabalapur, "Charge Transport in Deep and Shallow States in a High-mobility Polymer Field-Effect Transistor", IEEE Transactions on Electron Devices, 63 (3), 1254-1259
46) J. -Y. Jeon, T. -J. Ha*, "Waterproof electronic-bandage with tunable sensitivity for wearable strain sensors", ACS Applied Materials & Interfaces, 8 (4), 2866-2871
45) J. -Y. Jeon, T. -J. Ha*, "High performance single-walled carbon nanotube based thin-film transistors by reducing charge transfer", IEEE Transactions on Electron Devices, 63 (2), 827-831
44) J. -Y. Jeon, T. –J. Ha*, "Charge transport study of solution-processed graphene/fluoropolymer field-effect transistors", Nanoscience and Nanotechnology Letters, 8 (9), 774-777
43) T. -J. Ha*, "High performance HfIZO thin-film transistors based on transparent AMOLED displays", Science of Advanced Materials, 8, 307-311
2015
42) T. -J. Ha*, "Hybrid graphene/fluoropolymer field-effect transistors with improved device performance", IEEE Transactions on Electron Devices, 62 (12), 4340-4344.
41) T. -J. Ha*, W. -J. Cho, H. -B. Chung, S. -M. Koo, "A Comparison of Photo-Induced Hysteresis Between Hydrogenated Amorphous Silicon and Amorphous
IGZO Thin-Film Transistors", Journal of Nanoscience and Nanotechnology, 15, 6695-6698
40) T. -J. Ha*, A. Lee, "Chemical vapor deposition grown monolayer graphene field-effect transistors with reduced impurity concentration", Electronic Materials Letters, 11 (4), 552
39) S. Koo, T. -J. Ha*, "Improved photo-induced stability in amorphous metal-oxide based TFTs for transparent displays", Journal of Nanoscience and Nanotechnology, 5, 7800
38) T. Lee, M. -S. Kang, T. -J. Ha*, S. Koo*, "Electrical Characteristics of Ni-CNT-SiO2-SiC Structured 4H-SiC MIS Capacitors", Journal of Nanoscience and Nanotechnology, 5, 7542
37) N. Seong, T. Kim, H. Kim, T. -J. Ha*, Y. Hong*, "Tunable threshold voltage in solution-processed single-walled carbon nanotube thin-film transistors", Current Applied Physics, 15, S8
36) T. -J. Ha*, "Restorative effect of oxygen annealing on device performance in HfIZO thin-film transistors", AIP Advances, 5, 037136.
35) J. Park, T. -J. Ha, W. J. Cho, "Improvement of air stability on solution‐processed InZnO thin‐film transistors by microwave irradiation and In: Zn composition ratio", physica status solidi (a), 8, 1719
34) T. -J. Ha*, "Photo-induced electrical instability in hydrogenated amorphous silicon based thin-film transistors and the effect of its phase transition", Current Applied Physics, 15, 330
2014
33) T. -J. Ha, K. Chen, S. Chuang, K. M. Yu, D. Kiriya, A. Javey, "Highly Uniform and stable n-Type carbon nanotube transistors by using positively charged silicon nitride thin films", Nano Letters, 15, 392
32) T. -J. Ha*, "Visible-light-induced instability in amorphous metal-oxide based TFTs for transparent electronics", AIP Advances, 4, 107136
31) S. Kim, T. -J. Ha*, P. Sonar, A. Dodabalapur, "Density of trap states in a polymer field-effect transistor", Applied Physics Letters, 105, 133302
30) H. Ota, K. Chen, Y. Lin, D. Kiriya, H. Shiraki, Z. Yu, T. -J. Ha, A. Javey, "Highly-deformable, liquid-state heterojunction sensors", Nature Communications, 5, 5032
29) K. Chen, D. Kiriya, M. Hettick, M. Tosun, T. -J. Ha, S. R. Madhvapathy, S. Desai, A. Sachid, A. Javey, "Air stable n-doping of WSe2 by silicon nitride thin films with tunable fixed charge density", APL Materials, 2, 092504
28) T. -J. Ha*, “Low-voltage and hysteresis-free organic thin-film transistors employing solution-processed hybrid bilayer gate dielectrics”, Applied Physics Letters, 105, 043305
27) D. Kiriya, K. Chen, H. Ota, Y. Lin, P. Zhao, Z. Yu, T. -J. Ha, A. Javey, "Design of surfactant-substrate interactions for roll-to-roll assembly of carbon nanotubes for thin-film transistors", Journal of the American Chemical Society (JACS), 136 (31), pp.11188-11194
26) T. -J. Ha, D. Kiriya, K. Chen, A. Javey, “Highly stable hysteresis-free carbon nanotube thin-film transistors by fluorocarbon polymer encapsulation”, ACS Applied Materials & Interfaces, 6(11), pp.8441-8446
25) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Improved performance in diketopyrrolopyrrole-based transistors with bilayer gate dielectrics”, ACS Applied Materials & Interfaces, 6 (5), pp. 3170-3175
24) P. Sonar, T. -J. Ha, Y. Seong, S. -C. Yeh, C. -T. Chen, S. Manzhos, and A.Dodabalapur, “A Study of Diphenylfumaronitrile and Furan-Substituted Diketopyrrolopyrrole alternating Copolymer and its Thin Film Transistor”, Macromolecular Chemistry and Physics, 215 (8), pp.725-732
Before 2014
23) T. -J. Ha, J. Lee, L. Tao, I. Kholmanov, R. S Ruoff, P. J. Rossky, D. Akinwande, and A. Dodabalapur, “Graphene/fluoropolymer hybrid materials with enhancement of all device properties for improved field-effect transistors”, IEEE International electron devices meeting (IEDM) Technical Digest 2013
22) J. Lee*, S. Chang*, T. -J. Ha, H. Li, R. S Ruoff, D. Akinwande, and A. Dodabalapur, “High-performance flexible nanoelectronics: 2D atomic channel materials for low-power digital and high-frequency analog devices”, IEEE International electron devices meeting (IEDM) Technical Digest 2013
21) J. Lee, T.- J. Ha, H. Li, K. N. Parrish, M. Holt, A. Dodabalapur, R. S. Ruoff, and D. Akinwande, “25GHz Embedded-Gate Graphene Transistors with High-k Dielectrics on Extremely Flexible Plastic Sheets”, ACS Nano , 7 (9), pp. 7744-7750, 2013
20) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge Transport Study of High Mobility Polymer Thin-film Transistors Based on Thiophene Substituted Diketopyrrolopyrrole Copolymer”, Physical Chemistry Chemical Physics(PCCP), 15, (24) pp. 9735-9741, 2013
19) T.-J. Ha*, A. Dodabalapur, “Photo stability of solution-processed low-voltage high mobility zinc-tin-oxide/ZrO2 thin-film transistors for transparent display applications”, Applied Physics Letters, 102, (12) 123506, 2013
18) P. Sonar, T. -J. Ha and A. Dodabalapur, “Synthesis, Characterization and Organic Field Effect Transistor Performance of Diketopyrrolopyrrole- Fluorenone Copolymer”, Physical Chemistry Chemical Physics,15, (20) pp. 7475-7478, 2013
17) T. -J. Ha, J. Lee, D. Akinwande, A. Dodabalapur, “The Restorative Effect of Fluoropolymer Coating on Electrical Characteristics of Graphene Field-Effect Transistors”, IEEE Electron Device letters,34 (4), pp. 559-562, 2013
16) J. Lee, T. -J. Ha, K. N. Parrish, Sk. F. Chowdhury, L. Tao, A. Dodabalapur, and D. Akinwande, “High-performance current saturating graphene field-effect transistor with hexagonal boron nitride dielectric on flexible polymeric substrates”, IEEE Electron Device letters ,34 (2), pp. 172-174, 2013
15) T. -J. Ha, J. Lee, Sk. F. Chowdhury, D. Akinwande, P. J. Rossky, A. Dodabalapur, “Transformation of the Electrical Characteristics of Graphene Field-Effect Transistors with Fluoropolymer”, ACS Applied Materials & Interfaces, 5 (1), pp. 16-20, 2012
14) P. Sonar, T. -J. Ha and A. Dodabalapur, “A fluorenone based low band gap solution processable copolymer for air stable and high mobility organic field effect transistors”, Chemical Communications. 49, (16) pp. 1588-1590, 2012
13) J. Lee, K. N. Parrish, Sk. F. Chowdhury, T. -J. Ha, Y. Hao, L.Tao, A. Dodabalapur, D.Akinwande, “State-of-art Graphene Transistors on Hexagonal Boron Nitride, High-k, and Polymeric Films for GHz Flexible Analog Nanoelectronics”, IEDM Technical Digest 2012
12) T. -J. Ha, D. Akinwande, A. Dodabalapur, “Hybrid graphene/organic semiconductor field-effect transistors”, Applied Physics Letters, 101, (3) 033309, 2012
11) T. -J. Ha, P. Sonar, and A.Dodabalapur, “Solution-Processed Dual-Gate Polymer Field-Effect Transistors for Display Applications”, Journal of Display Technology, 9 (9), 710-714, 2012
10) T. -J. Ha, Jongho Lee, Sk. Fahad Chowdhury, Deji Akinwande, Ananth Dodabalapur, “Material properties and field-effect transistor characteristics of hybrid organic/graphene active layers”, SPIE, 8478, 847810, 2012
9) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge-Carrier Velocity Distributions in High- Mobility Polymer Dual-Gate Thin-Film Transistors”, IEEE Electron Device letters, 33 (6), pp. 899-901, 2012
8) T. -J. Ha, P. Sonar, S. P. Singh and A. Dodabalapur, “Characteristics of High-Performance Ambipolar Organic Field-Effect Transistors Based on Diketopyrrolopyrrole-Benzothiadiazole Copolymer”, IEEE Transaction on Electron Devices, 59 (5), pp.1494-1500, 2012
7) T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge Carrier Velocity Distributions in High Mobility Polymer Field-Effect Transistors”, Applied Physics Letters, 100 (15), pp. 153302, 2012
6) T. -J. Ha, P. Sonar, B. Cobb, and A. Dodabalapur, “Charge Transport and Density of Trap States in Balanced High Mobility Ambipolar Organic Thin-Film Transistors”, Organic Electronics, 13(1), pp. 136-141, 2012
5) T. -J. Ha, D. Sparrowe, and A. Dodabalapur, “Device Architectures for Improved Amorphous Polymer Semiconductor Thin-Film Transistors”, Organic Electronics, 12 (11), pp. 1846-1851, 2011
4) T. -J. Ha, P. Sonar, and A. Dodabalapur, “High mobility top-gate and dual-gate polymer thin-film transistors based on diketopyrrolopyrrole-naphthanlene copolymer”, Applied Physics Letters, 98, (25) 253305, 2011
3) P. Sonar, S. P. Singh, Y. Li, Z. –E. Ooi, T. -J. Ha, I. Wong, M. S. Soh and A. Dodabalapur, “High mobility organic thin film transistor and efficient photovoltaic devices using versatile donor–acceptor polymer semiconductor by molecular design”, Energy & Environmental Science, 4,(6) pp.2288-2296, 2011
2) H. –S. Park, T. -J. Ha, Y. Hong, J. –H. Lee, B. –J. Lee, B. –H. You, N. –D. Kim, and M. –K. Han, "A touch-sensitive display with embedded hydrogenated amorphous-silicon photodetector arrays," Journal of the Society for Information Display, 16(8) pp. 1165-1169, 2008
1) H. –S. Park, T. -J. Ha, Y. Hong, M. –K. Han, D. –H. Woo, K. –S. Shin, and C. –W. Kim, "A self-reset ambient-light sensor system for low-temperature polycrystalline-silicon active-matrix displays," Journal of the Society for Information Display, 16(8), pp. 889-893, 2008
CONFERENCE PRESENTATION and/or PROCEEDING (*oral presentation)
145) *M. Kim, S. Park, T. -J. Ha, "Self-powered sensor systems based on triboelectric nanogenerators', ICERE, Feb. 2024 (Best presenation award) (Highlighted in Joongang Ilbo)
144) *S. Park, S. Park, T. -J. Ha, "High-performance transparent heaters for bioelectronic applications", ICERE, Feb. 2024 (Best presenation award)(Highlighted in Joongang Ilbo)
143) *S. Park, T. -J. Ha, "Wearable UV photodetectors based on sol-gel-based metal-oxide films operating at sub-V", IEEE IPC, Nov. 2023
142) *B. Hedau, S. Park, T. -J. Ha, "Water splitting based on metal-organic framework electrocatalysts", ICAE, Nov. 2023
141) *M. Kim, S. Park, T. -J. Ha, "Electromaterial composites for enhanced output performance of triboelectric nanogenerators", ICAE, Nov. 2023
140) *S. Park, T. -J. Ha, "Functionalized molybdenum disulfide monolayers for field-effect transistor-type gas sensors", ICAE, Nov. 2023
139) S. Park, T. -J. Ha, "Fluorocarbon passivation for the improved device performance of thin-film transistors", KJF-ICOMEP, Aug. 2023
138) S. Park, T. -J. Ha, "Device engineering in sol-gel-based metal-oxide thin-film transistors", IMID, Aug. 2023
137) S. Park, S. Park, T. -J. Ha, "Effects of metal ion-doping on the electrical characteristics of oxygen-annealed metal-oxide thin-film transistors operating at Sub-V", IMID, Aug. 2023
136) *M. Kim, S. Park, T. -J. Ha, "Triboelectric nanogenerators for wearable self-powered systems", NanoKorea, July. 2023
135) *S. Park, S. Park, T. -J. Ha, "Transparent conductive electrodes based on solution-processed metal-nanowire films for high-performance transparent heaters", NanoKorea, July. 2023
134) S. Park, T. -J. Ha, "Toward breath biosensors based on polymer incorporated metal oxide nanohybrids for the realtime diagnosis of metabolic disorders and their application in self powered bioelectronics", Biosensors, June 2023
133) B. Hedau, T. -J. Ha, "Green synthesizedb iosensors based on metal organic framework hollow nanocages for rapid andefficient electrochemical analyses of pesticides in food products",Biosensors, June 2023
132) *S. Park, T. -J. Ha, "Engineered polymer composites for high-performance wearable bioelectronics", APME, April. 2023
131) *S. Park, T. -J. Ha, "Engineered carbon nanohybrids for wearable moist-electric generators", MRS spring, April. 2023
130) S. Park, T. -J. Ha, "Polymerized ionogels for wearable chemical biosensors detecting biomarkers in exhaled breath", MRS spring, April. 2023
129) S. Park, T. -J. Ha., "Contact engineering for improved device performance in low-voltage operating molybdenum disulfide thin-film transistors in bioelectronic applications", ICCE-Asia, Oct. 2022
128) S. Park, T. -J. Ha et al., "Flexible active-matrix devices based on sol-gel-based metal-oxide dielectrics and semiconductors by O2 annealing" IMID, Aug. 2022
127) B. Kang, T. -J. Ha, "Protein-based conductive composites for wearable biosensors", MCARE, Aug. 2022
126) *S. Park, T. -J. Ha et al., "Chemiresistive nano gas sensors based on molybdenum disulfide thin-film transistors for bioelectronic applications", NanoKorea, July, 2022
125) S. Park, T. -J. Ha, "High-quality boron nitride thin films fabricated by solution process at lowtemperatures for flexible nanoelectronics", IWUMD, May, 2022
124) *T. -J. Ha (INVITED), "Chemiresistive-type nano gas sensors based on functionalization", Sensors, April. 2022
123) B. Kang, T. -J. Ha et al., "Printed nanocomposite films for human-interactive sensor applications", KFPE, Dec. 2021
122) J. Jeon, T. -J. Ha et al., "All-solution-processed physical sensors for human-interactive displays", KFPE, Dec. 2021
121) *H. Choi, T. -J. Ha et al., "Biocompatible conductive composites for biodegradable electronics", IUMRS-ICA , Oct. 2021
120) *S. Park, T. -J. Ha et al., "Solution-processed metal-oxide dielectrics with controlled oxygen vacancies", IUMRS-ICA , Oct. 2021
119) J. Jeon, T. -J. Ha et al., "Printable carbon-based nanocomposites for flexible/wearable electronic applications", IUMRS-ICA , Oct. 2021
118) B. Kang, T. -J. Ha et al., "Hybrid nanocomposites for non-enzymatic electrochemical biosensors", ISE 2021, Sep. 2021 (Best poster award)
117) S. Park, T. -J. Ha et al., "Low-voltage operating metal-oxide thin-film transistors with high-k crystalline metal-oxide dielectrics for active-matrix displays", IMID, Aug. 2021
116) J. Jeon, T. -J. Ha et al., "The restorative effect of flurocarbon encapsulation on the device performance of molybdenum disulphide thin-film transistors operating at low voltages for active matrix displays", IMID, Aug. 2021
115) S. Park, T. -J. Ha et al., "Metal-oxide thin-film transistors operating at low-voltages for display backplanes", IMID, Aug. 2021
114) H. Choi, T. -J. Ha et al.,"Highly stable and robust on-skin electronics on flexible substrates for human-interactive displays", IMID, Aug. 2020
113)*B. Kang, T. -J. Ha et al.,"Triboelectric nanogenerators with the reduced loss of tribo-charges", NanoKorea, July, 2020
112)*J. Jeon, T. -J. Ha et al.,"Improved dispersibility of carbon nanotube suspensions by polymeric additives", ICMEA, Jan, 2020.
111)*S. Park, T. -J. Ha et al.,"Functionalized carbon nanotube random networks for high performance nanoelectronics", ICMEA, Jan. 2020.(Excellent oral presentation)
110) B. Kang, T. -J. Ha et al.,"Molecular functionalization of graphene transistors for neural-interface systems", ICMS, Nov. 2019
109) B. Kang, T. -J. Ha et al.,"Functional nanocomposites for human-interactive sensors", Euromat, Sept. 2019
108) S. Park, T. -J. Ha et al.," Wearable photo transistors with sol-gel based metal-oxide semiconductors for ultra-violet photodetectors", IMID, Aug. 2019
107) B. Yu, T. -J. Ha et al., " Low-voltage operating metal-oxide thin film transistors for ultra thin flexible electronics", IMID, Aug. 2019
106) S. Park, T. -J. Ha et al., "Device performance of solution-processed resistive random access memory consisting of nanocrystalline metal-oxide dielectrics", NanoKorea, July 2019 (Best poster award)
105) B. Kang, T. -J. Ha et al., "Chemiresistive pH sensors based on advanced nanocomposite materials for neurological healthcare monitoring systems", ICMAT, June 2019.
104) B. Kang, T. -J. Ha et al., "All-solution-processed biosensors for detection of cortisol down to uM concentration", 6th International conference on Biosensing technology, June 2019
103) J. Jeon, T. -J. Ha et al.,"Solution-processed wearable biosensors for exhaled breath monitoring systems", 6th International conference on Biosensing technology, June 2019
102) *T. -J. Ha (INVITED), "Advanced nano-materials for wearable sensor applications", MRS-K, May 2019
101) B. Kang, T. -J. Ha et al., "Wearable motion sensors based on functional nano-composites", The Korean Sensors Society, Mar. 2019
100) *T. -J. Ha (INVITED), "Device physics of high performance inorganic and hybrid thin-film transistors", ENGE, Nov. 2018 (Best poster paper award)
99) *T. -J. Ha (INVITED), "High performance thin-film transistors based on advanced materials for next generation displays", IMID, Aug. 2018
98) B. Kang, T. -J. Ha et al., "Flexible piezocapacitive pressure sensors fabricated by all-solution-process for human-machine interfaces", ICMAP, July, 2018
97) *B. Yu, T. -J. Ha et al., "Characteristics of solution-processed high-k dielectrics for high performance electronic devices", NanoKorea, July, 2018
96) *B. Yu, T. -J. Ha et al., "Charge transport studies on solution-processed metal-oxide thin-film transistors for display backplanes", NanoKorea, July, 2018
95) J. Jeon, T. -J. Ha et al., "Carbon nanotube based bio-electrodes for surface electromyogram sensors", ICSM, July, 2018
94) B. Kang, T. -J. Ha et al., "Wearable carbon nanotube based biosensors for healthcare monitoring systems", ICSM, July, 2018
93) B. Kang, T. -J. Ha et al., "Morphological planarization of perovskite absorbers using a phenyl-C61-Butyric acid methyl ester", WCPEC-7, June, 2018
92) *J. Jeon, T. -J. Ha et al., "Solution-processed high-k dielectrics films for wearable neuroelectronics", ECS, May, 2018
91) B. Kang, T. -J. Ha et al., "High performance flexible bio-electronics for electrophysiological recordings", ECS, May, 2018
90) B. Kang, T. -J. Ha et al., "Wearable triboelectric energy harvesters for brain-machine interfaces", NGPT, May, 2018
89) *B. Yu, T. -J. Ha et al., "High performance solution-processed indium-gallium-zinc-oxide thin-film transistors on flexible substrates operating at low-voltage", KCS, Feb. 2018.
88) *J. Jeon, T. -J. Ha et al., "Solution-processed multi-wall carbon nanotube sensors for hydrogen peroxide gas detection", KCS, Feb. 2018
87) B. Kang, T. -J. Ha et al., "Wearable single-wall carbon nanotube thin-film transistor arrays for neuro-interfaces", ICAE, Nov. 2017
86) B. Yu, T. -J. Ha et al., "Surface characteristics of dielectric films by contact angle measurements", ICAE, Nov. 2017
85) B. Kang, T. -J. Ha et al., "A patterning technique to improve device performance of carbon nanotube based transistors for electroencephalogram sensor systems", ICAE, Nov. 2017
84) B. Yu, T. -J. Ha et al., "Characteristics of high-k aluminium oxide thin films fabricated by solution-process for intelligent neural interface", ICAE, Nov. 2017
83) *B. Kang, T. -J. Ha et al., "Solution-processed organic/inorganic nanocomposites for high performance human-interactive sensors", ICMEM, Nov. 2017
82) B. Kang, T. -J. Ha et al., "Wearable electrophysiological sensors for healthcare monitoring systems", Annual meeting of the Korean Biochip society, Nov. 2017
81) *B. Yu, T. -J. Ha et al., "Solution-processed metal-oxide semiconductors for neuromorphic electronics", IWOE24, Sept. 2017
80) B. Kang, T. -J. Ha et al., "Patch-type carbon-based sensors for electromyogram", ICFPE, Sept. 2017
79) *H. Shin, T. -J. Ha et al., "Trapping/Detrapping analysis on carbon nanotube thin film transistors using non-quasi static measurement", IMID, Aug. 2017,
78) *B. Yu, T. -J. Ha et al., "High-quality boron nitride thin films for high-resolution transparent displays", ICANS27, Aug. 2017
77) *T. -J. Ha (INVITED), "Material design and structural integration for high performance electronics", APSMR, July. 2017 (Outstanding achievement award)
76) B. Kang, T. -J. Ha et al., "Improving stability of perovskite solar cell employing fluorocarbon encapsulation", APSMR, July. 2017
75) B. Kang, T. -J. Ha et al., "Ultra low voltage operating single-walled carbon nanotube thin-film transistors", NanoKorea, July. 2017
74) B. Park, T. -J. Ha et al., "Wearable nanomaterial-based glucose biosensors with functionalized glucose oxidase", NanoKorea, July. 2017
73) B. Yu, T. -J. Ha et al., "Interfacial engineering on solution-processed boron nitride thin films for optoelectronics", NanoKorea, July. 2017
72) B. Yu, T. -J. Ha, "Material analysis of 2D boron nitride thin films for high performance memory devices", SCANDEM, June. 2017
71) *B. Park, T. -J. Ha et al., "Structural integration of boron nitride thin films for carbon-based transistors", ICMFM, May. 2017
70) B. Park, T. -J. Ha et al.,"Patch-type nitric oxygen gas sensor based on functionalized single-wall carbon nanotube thin films", KCS, Feb. 2017(Best poster award)
69) B. Park, T. -J. Ha, et al., "High thermoelectric properties of solution-processed single-wall carbon nanotube/polymer composite films on flexible substrates", ENGE, Nov. 2016
68) J. Jeon, T. -J. Ha, et al., "High performance ambipolar thin-film transistors based on solution-processed hybrid bilayers of carbon-nanotube/indium-gallium-zinc-oxide semiconductors", ENGE, Nov. 2016
67) J. Jeon, T. -J. Ha, "Solution-processed nanoscale carbon nanotube thin-film transistors fabricated by electromigration", ECS prime, Oct. 2016.
66) J. Jeon, T. -J. Ha, et al., "Characteristics of boron nitride thin films for high performance nanoelectronics", ICMAP, Sep. 2016.
65) J. Jeon, T. -J. Ha," Wearable pressure sensors based on electronic nanomaterials with tunable sensitivity", IWPMA-ECMD, Aug. 2016. (IUVSTA award)
64) B. Park, T. -J. Ha et al.,"Methlyammonium lead mixed halide perovskite films processed with a new composition", IVC-20, Aug. 2016.
63) J. Jeon, T. -J. Ha et al., "Improved device performance of boron-nitride-based thin-film transistors", IVC-20, Aug. 2016.
62) *J. Jeon, T. -J. Ha," High performance solution-processed carbon nanotube thin-film transistors by employing an interacting film", ICEIT, Jan. 2016.
61) J. Jeon, T. -J. Ha, "Improved device performance of field-effect transistors based on graphene/fluoropolymer advanced materials", ICAE, Nov. 2015
60) J. Jeon, T. -J. Ha, "Solution-processed carbon nanotube thin-film transistors for flexible display backplanes", IWFPE, Nov. 2015.
59) J. Jeon, T. -J. Ha, "High performance zinc-tin-oxide thin-film transistors encapsulated with fluoropolymer for transparent displays", IMID, Aug. 2015.
58) *S. Kim, T. -J. Ha, P. Sonar, A. Dodabalapur, "Sub-threshold charge transport in polymer/organic field-effect transistors", SPIE, Aug. 2015.
57) J. Jeon, T. -J. Ha, "Study on the density of trap states in semiconductor", ICDS, July, 2015.
56) J. Jeon, T. -J. Ha, "Wearable strain/pressure sensors based on nanomaterials with tunable sensitivity", NanoKorea, July, 2015
55) J. Jeon, T- J. Ha, " Photo-induced electrical instability in transparent electronics", PIERS, July, 2015.
54) H. Shin, S. -Y. Park, T. -J. Ha, C. Lee, "Non-quasi static measurement in random network carbon nanotube thin-film transistors for next-generation displays", SID, June, 2015.
53) *T. -J. Ha, "Device physics of organic and 2D field-effect transistors", 26th IC ME&D, May, 2015
52) *S. Kim, T. -J. Ha, P. Sonar, A. Dodabalapur, "Sub-threshold charge transport in polymer transistors", APS, March, 2015.
51) S. -M. Koo, T. -J. Ha, " Reduced charge transfer on device characteristics in carbon nanotube based thin-film transistors", ITC, Feb. 2015
50) *T. -J. Ha, "Advanced Material based thin-film transistors for printable electronics", IWC Materials for future IT, Dec. 2014
49) T. -J. Ha, J. Lee, D. Akinwande, A. Dodabalapur, "Fluoro-carbon encapsulation on 2-dimensional material based field-effect transistors with improvement in device performance for next-generation displays", IMID, Korea, Aug. 2014 (Outstanding poster award)
48) J. Kim, K. Nam, T-. J. Ha, W. Cho, H. Chung, "Rectifying characteristics of sol-gel derived TiOx thin films for 1D-1R resistance switching memory applications", SSDM, Japan, Sep. 2014
47) T. -J. Ha, J. Kim, W. Cho, H. Chung, "A comparison of photo-induced hysteresis between hydrogenated amorphous silicon and amorphous IGZO thin-film transistors", SSDM, Japan, Sep. 2014
46) T. Lee, S. Koo, T. -J. Ha, "Human interactive sensors based on CNT/conductive nanoparticle composites", ICMAP, Korea, July, 2014
45) H. Shin, T. -J. Ha, C. Lee, "Velocity distributions of charge carriers in carbon nanotube thin-film transistors by using non-quasistatic measurement", ICMAP, Korea, July, 2014 (Best poster award)
44) J. Son, K. Choi, T. -J. Ha, "Solution-processed carbon nanotube thin-film transistors for flexible displays", KIEEME, Korea, June, 2014
43) *A. Dodabalapur, P. Sonar, and T. -J. Ha, “High-performance transistors based on donor-acceptor polymers”, 247th ACS National Meeting & Exposition, Dallas, USA, March, 2014.
42) *T. -J. Ha, J. Lee, L. Tao, I. Kholmanov, R. S Ruoff, P. J. Rossky, D. Akinwande, and A. Dodabalapur, “Graphene/fluoropolymer hybrid materials with enhancement of all device properties for improved field-effect transistors”, IEEE IEDM 2013, Washington DC, USA, Dec. 2013.
41) *J. Lee, T. -J. Ha, H. Li, R. S Ruoff, D. Akinwande, and A. Dodabalapur, “High-performance flexible nanoelectronics: 2D atomic channel materials for low-power digital and high-frequency analog devices”, IEEE IEDM 2013, Washington DC, USA, Dec. 2013.
40) *P. Sonar, T. -J. Ha, T. Foong, S. P. Singh, A. Dodabalapur, “Innovative p-functional printable low band gap polymers for ambipolar organic field effect transistors”, The 15th Asian Chemical congress, Singapore, August, 2013
39) *T. -J. Ha, J. Lee, D. Akinwande, P. J. Rossky, A. Dodabalapur, “Transformation of the Electrical Characteristics of Graphene Field-Effect Transistors with Fluoropolymer”, SPIE, San Diego, USA, August, 2013
38) *T. -J. Ha, and A. Dodabalapur, “Photo Stability of Solution-Processed Low-Voltage High Mobility Zinc-Tin-Oxide/Zirconium-Oxide Thin-Film Transistors for Transparent Display Applications”, Electronic materials conference (EMC), University of Notre Dame, South Bend, USA, June, 2013
37) *P. Sonar, T. -J. Ha, T. Foong, Z. -E. Ooi, E. L. Williams, A. Dodabalapur, “New high performance organic semiconducting printable materials using old diketopyrrolopyrrole dye based conjugated building blocks”, International conference on materials for advanced technologies (ICMAT), Suntec Singapore, June 2013
36) *T. -J. Ha, J. Lee, B. Worley, D. Akinwande, P. Rossky, and A. Dodabalapur, “The Restorative Effects of Fluoropolymer Coating on the Electrical Characteristics of Graphene Field-Effect Transistor”, Nano Night, Austin, USA, May, 2013
35) *A. Dodabalapur, T. -J. Ha, and P. Sonar, “Charge carrier transport in advanced DPP based polymer thin-film transistors”, The Electrochemical society (ECS) , Toronto, Canada, May, 2013
34) *P. Sonar, T. -J. Ha, T. Foong, A. Dodabalapur, “Push-Pull Based Novel p-Functional Polymeric Semiconductors for Printed Flexible Electronics”, ECS , Toronto, Canada, May, 2013
33) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge transport and device physics in high mobility donor-acceptor polymer based transistors”, MRS spring, San Francisco, USA, April, 2013.
32) *D. A. Duarte, T. -J. Ha, X. Su, B. A. Yin, S.V. Sreenivasan, A. Dodabalapur, “Nanomanufacturing of thin-film electronic circuits”, NASCENT 1st meeting, LA, USA, March, 2013
31) *J. Lee, K. N. Parrish, Sk. Fahad Chowdhury, T. -J. Ha, Y. Hao, L. Tao, A. Dodabalapur, D. Akinwande, “ State-of-art Graphene Transistors on Hexagonal Boron Nitride, High-k, and Polymeric Films for GHz Flexible Analog Nanoelectronics”, IEEE IEDM, San Francisco, USA, Dec. 2012.
30) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Electronic properties and charge carrier transport on advanced DPP polymer thin-film transistors”, MRS fall, Boston, USA, November, 2012 .
29) *P. Sonar, S. P. Singh, Y. Li, Z. -E. Ooi, T. -J. Ha, E. L. Williams and A. Dodabalapur, “Diketopyrrolopyrrole –A Versatile Conjugated Building Block for Organic Electronics”, International Conference on Ocean Energy (ICOE), Dublin, Ireland, October, 2012.
28) *T. -J. Ha, J. Lee, Sk. Fahad Chowdhury, D. Akinwande, and A. Dodabalapur, “Material properties and field-effect transistor characteristics of hybrid organic/graphene active layers”, SPIE Optics+photonics, San Diego, USA, August, 2012.
27) *A. Dodabalapur, P. Sonar, T. -J. Ha, “Charge transport in donor acceptor polymer field-effect transistors”, SPIE, San Diego, USA, August, 2012.
26) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Understanding dual-gate polymer field-effect transistors”, DRC, Pennsylvania, USA, June, 2012.
25) *T. -J. Ha, A. Lee, D. Akinwande, and A. Dodabalapur, “Hybrid organic graphene field-effect transistors”, EMC, Pennsylvania, USA, June, 2012.
24) *L. Schulz, C. Lee, S. Jang, T. -J. Ha, B. Kim, and A. Dodabalapur, “High mobility in FETs Based on Sol-Gel Processed Transparent Amorphous Semiconducting Oxides”, MRS Spring, San Francisco, USA, April, 2012.
23) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge Transport and Density of Trap States in Balanced High Mobility Ambipolar Organic Thin-Film Transistors”, MRS Fall, Boston, USA, December 2, 2011.
22) *A. Dodabalapur, T. -J. Ha, C. Lee, P. Sonar, and S. P. Singh, “Charge Transport in Polymer and Amorphous Oxide Transistors”, International workshop on physics of semiconductor devices (IWPSD) Plenary, Kanpur, India, December,2011.
21) *P. Sonar, S. P. Singh, Y. Li, Z. -E. Ooi, T. -J. Ha, and A. Dodabalapur, “Diketopyrrolopyrrole Based Donor-Acceptor Organic Semiconductors for High Performance Printed Electronics”, Materials Science, Metal & Manufacturing (M3), Singapore, Singapore, December, 2011.
20) *T. -J. Ha, P. Sonar, and A. Dodabalapur, “Charge carrier velocity distributions in polymer thin-film transistors”, IMID, Seoul, Korea, October, 2011.
19) * P. Sonar, S. P. Singh, Y. Li, Z. -E. Ooi, T. -J. Ha, Z. Chen, A. Dodabalapur, “Diketopyrrolopyrrole based solution porcessable organic semiconductors for high performance organic electronics”, SPIE Optics+photonics, San Diego, USA, August, 2011.
18) *T. -J. Ha, P. Sonar and A. Dodabalapur, “Charge Transport and Velocity Distribution in High Mobility Polymer Thin Film Transistors based on Diketopyrrolopyrrole-naphthalene Copolymer”, MRS spring, San Francisco, USA, April, 2011.
17) *T. -J. Ha, P. Sonar, S. P. Singh, A. Dodabalapur, “Charge transport and velocity distribution in ambipolar organic thin film Transistors based on a diketopyrrolopyrrole-benzothiadiazole copolymer”, American Physical Society (APS), Dallas, USA, March, 2011.
16) *A. Dodabalapur, C. Lee, T. -J. Ha, B. Cobb, P. Sonar, S. P. Singh, and L. Ferlauto, “New approaches to study charge transport in organic and inorganic thin-film semiconductors”, Symposium on Organic and Polymer Electronics, Singapore, Singapore, December, 2010.
15) *T. -J. Ha, S. Kim, J. Lee, S. Lee, H. Park and M. -K. Han, “Hysteresis Phenomenon of oxide-based TFTs as transparent devices under the light illumination”, IDW, Miyazaki, Japan, December 9, 2009. (Best poster award)
14) *T. -J. Ha, S. Kim, S. Choi, S. Lee, H. Park and M. -K. Han, “ The Instability of Oxide-based Thin Film Transistors caused by the Negative Gate Bias Stress under the Light Illumination”, AM-FPD, Nara, Japan, July, 2009. .(Excellent oral presentation)
13) *T. -J. Ha, H. Park, S. Lee, S. Kim, and M. -K. Han, “ The Effect of Light on Amorphous Silicon Thin Film Transistors based on Photo-Sensor Applications”, IMID, Kintex, Korea, October, 2009.
12) *T. -J. Ha, S. Kim, S. Choi, J. Lee, H. Park and M. -K. Han, “The Investigation on Hysteresis Phenomenon of hydrogenated amorphous Silicon TFTs based on AMOLED under the Dark and the illuminated Condition”, Nordic Semiconductors meeting (NSM), Reykjavik, Iceland, June, 2009.
11) *T. -J. Ha, H. Park, S. Kuk, D. Kang and M. -K. Han, ” The Effect of Light under Electrical Bias Stresses on Amorphous Silicon Thin Film Transistors as Photo Sensor”, IDW, Niigata, Japan, December, 2008
10) *T. -J. Ha, S. Park and M. -K. Han “Suppression of SPC-Si TFT leakage current effect on active matrix displays by employing an improved circular switch”, The 15th KCS, Bogwang, Korea, February, 2008.
9) *H. Park, T. -J. Ha, S. Ji, J. Lee, B. Lee, B. You, N. Kim and M. -K. Han,” A New Touch Sensitive Active Matrix Display with Embedded Light Sensors”, IDW, Niigata, Japan, December, 2008.
8) W. Lee, T. -J. Ha, H. Park, J. Lee and M. -K. Han, “Touch Screen Panel by using Liquid Crystal Capacitance Variation embedded in LTPS AMLCD”, IMID, Kintex, Korea, October, 2008.
7) S. Kim, S. Han, T. -J. Ha, S. Kuk, D. Kang and M. -K. Han, "Nanocrystalline Silicon Thin Film Transistor Fabricated without any Substrate Heating for a Flexible Display", SID, LA, USA, May, 2008.
6) H. Park, T. -J. Ha, D. Woo, K. Shin, C. Kim and M. -K. Han "A New Monolithic Polysilicon Ambient Light Sensor System with Wide Dynamic Range for Active-Matrix Displays by Employing an Adaptive Sensitivity Control method", SID, LA, USA, May, 2008.
5) W. Lee, H. Park, T. -J. Ha, J. Lee and M. -K. Han, "Touch Screen Panel embedded in AMLCD by using Liquid Crystal Capacitance Variation", AM-FPD, Tokyo, Japan, July, 2008.
4) H. Shin, W. Lee, S. Park, T. -J. Ha, M. -K. Han, "New Fast Threshold Voltage Detecting Pixel Scheme for High Resolution and Large Area AMOLED Display", IDW, Sapporo, Japan, December, 2007.
3) H. Park, S. Kuk, T. -J. Ha, H. Shin and M. -K. Han, "A New Poly-Si TFT Pixel for Digital Driving AMOLED Displays Without Any Storage Capacitors," IDW, Sapporo, Japan, December, 2007.
2) S. Kim, S. Han, T. -J. Ha and M. -K. Han "Effect of plasma pre-treatment on nanocrystalline silicon film deposited without substrate heating", IDW, Sapporo, Japan, December, 2007.
1) S. Choi, S. Park, Won. Lee, T. -J. Ha, and M. -K. Han, "Hysteresis Phenomenon in Sequential Lateral Solidification poly-Si Thin Film Transistor at 213K", MRS spring, San Francisco, USA, March, 2008.