ADVANCED MATERIALS AND DEVICE ENGINEERING LAB

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, June, 2025 

JOURNAL

​"Synaptic ~" submitted

"IGO~" submitted

"high-K ~" submitted

"WS2 NMOS Inverter~" submitted

​"Gausian~" submitted

"PECVD~" submitted

​

2026

138) H. -K. Jung, B. -J. Kim, H. -Y. Choi, S. -H. Lee, H. Park, Y. -H. Kim*, T. -J. Ha*, Effects of structural parameters on the Gaussian response in WSe2/IGZO heterojunction transistors, Journal of Physics D: Applied Physics 59 (33), 335105

137) J. Ma, D. Lee, E. Yang, C. Lee, J. Kim, J. Seok, T. -J. Ha*, J. Kwak*, J. Chang*, Ultra-High Gain Vertically Stacked WS2 NMOS Inverter Enabled by Co-Optimization of Layer Number and Contact Metal, ACS Nano 20 (29), 20835-20848

136) S. Chu, Y. Cho, Y. Jang, E. Kim, H. Park, J. Kang, S. Choi, J. Yi*, T. -J. Ha*, Silicon dioxide dielectrics through capacitively coupled plasma-enhanced chemical vapor deposition using NO2 as an alternative oxidant with a low global warming potential and thermal budget, Applied Surface Science 747, 167693

135) E. Kim, S. Park, J. Na, J. Lee, W. Jeon, Y. -B. Chung*, T. -J. Ha*, 1 V-Operable High-Mobility Amorphous Indium–Tin–Gallium–Zinc Oxide Thin-Film Transistors with High-k Hafnium Dioxide Gate Dielectrics through Continuous Atomic Layer Deposition, ACS Applied Materials & Interfaces 18 (21), 30119-30129 

134) Y. Choi, H. Kang, C. Kim, T. -J. Ha*, High-Performance Wearable Triboelectric Nanogenerators Based on Polyethyleneimine -doped Cellulose Acetate for Self-Powered Dynamic Signature Sensing and Verification, ​Energy & Environmental Materials ​(in press)

133) J. You, G. Hwang, E. Kim, T. -J. Ha*, All-Solution-Processed Transparent Electrodes Consisting of Ag NW/PEDOT:PSS Composites on PVDF-HFP Flexible Substrates for 2.5V-Operating Wearable Heaters, Journal of Materials Chemistry C 14 (22), 9810-9821 

132) P. Sayyad, B. Hedau, E. Kim, J. Kim*, T. -J. Ha*, Moisture electric generators with Ti3C2Tx–gelatin nanocomposites driven by the hydrovoltaic effect for self-powered flexible humidity sensors, Journal of Materials Chemistry A 14, 5007 - 5017 (INSIDE BACK COVER FEATURED)

​

2025

131) E. Kim, C. Lee, S. Park, J. Chang*, T. -J. Ha*, Restorative Effects of Low-Temperature Post-Sulfur Annealing on Device Performance of Monolayer MoS2 Transistors for NMOS Inverters, Small 21 (49), e06345 (INSIDE FRONT COVER FEATURED)

130) A. Bhaduri, C. Kim, T. -J. Ha*, Recent Developments in Materials Design for Advanced Supercapacitors, Energy & Environmental Materials ​ 8 (6), e70070 (Listed for Annual High Impact Paper Selection)

129) S. Park, E. Kim, Y. Jang, Y. Kang, Y. Kim*, J. Yi*, T. -J. Ha*, Enhanced Dielectric Properties of Alternative NO-Gas-Based SiO2 Films via Plasma-Enhanced Chemical Vapor Deposition for High-Performance Indium–Gallium–Zinc Oxide Thin-Film Transistors, Journal of Materials Chemistry C, 13, 8461-8469 (OUTSIDE BACK COVER FEATURED)

128) S. Nam, D. Kang, S. Jeon, D, Nam, J. Jo, S. Park, J. Lee, M. Kim, T. -J. Ha*, S. Park*, Y. Kim*, Contact-Engineered Oxide Memtransistors for Homeostasis-Based High-Linearity and Precision Neuromorphic Computing, Small, 21 (7), 2409510 

127) M. Kim, B. Hedau, P. Sayyad, J. Kim*, T. -J. Ha*, Electrochemical environmental sensors based on La-doped zeolitic imidazolate framework-67 functionalized with L-cysteine for simultaneous detection of Cd2+ and Hg2+, Applied Surface Science, 689 (30), 162549

126) C. Kim, T. -J. Ha*, Capacitive-type wearable temperature sensors based on yttria-stabilized zirconia films fabricated via microwave-assisted all-solution-process and their application for detection of touch stimuli, Journal of Alloys and Compounds 1011 (15), 178334

125) B. Hedau, T. -J. Ha*, Indium-doped iron-coordinated covalent organic framework as an efficient bifunctional oxygen electrocatalyst for energy applications, Journal of Alloys and Compounds 1010 (5), 178134

124) E. Kim, T. -J. Ha*, Heater-embedded visible-light phototransistor based on Cd-doped IGZO film fabricated through microwave-assisted sol-gel process, Advanced Optical Materials 13 (6), 2402171

123) B. Hedau, T. -J. Ha*, Post-synthesis surface modification of Cu/Zr metal azolate framework: A pathway to highly sensitive electrochemical biosensors for atrazine detection, Analytica Chimica Acta 1337 (1), 343547

2024

122) S. -J. Park, S. -R. Park, J. Na, W. -S. Jeon, Y. Kang, S. Ham, Y. Kim*, Y. -B. Chung*, T. -J. Ha*, Charge transport properties of high-mobility indium-gallium-zinc oxide thin-film transistors fabricated through atomic-layer deposition, Journal of Materials Chemistry C 12, 19071-19077 (OUTSIDE BACK COVER FEATURED)

121) A. Bhaduri, T. -J. Ha*, Biowaste-derived triboelectric nanogenerators for emerging bioelectronics, Advanced Science 11 (42), 2405666 (Highlighted in Advanced Science News)

120) S. Park, S. Park, J. Kim, T. -J. Ha*, Highly stable low-voltage operating mobile transparent heaters based on spray-coated MXene/silver nanowire nanocomposite electrodes powered by indoor solar cells, Applied Surface Science, 674 (15), 160929

119) E. Yang, S. Hong, J. Ma, S. -J. Park, D. Lee, T. Das, T. -J. Ha*, J. Kwak*, J. Chang*,  Realization of Extremely High-Gain and Low-Power in nMOS Inverter Based on Monolayer WS2 Transistor Operating in Subthreshold Regime, ACS Nano 18 (34), 22965-22977

118) S. -J. Park, S. -R. Park,W. -S. Jeon, J. Na, J. Lim, S. Ham, Y. -B. Chung*, T. -J. Ha*, High-quality indium-gallium-zinc oxide films synthesized by atomic layer deposition using a single cocktail precursor based on a liquid-delivery system and their applications for transistors and inverters, Journal of Materials Chemistry C, 12, pp. 11361-11367 (INSIDE FRONT COVER FEATURED)

117) P. Sayyad, S. -J. Park, T. -J. Ha*, Recent advances in biosensors based on metal-oxide semiconductors system-integrated into bioelectronics,  Biosensors and Bioelectronics 259 (1), 116407

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) (Highlighted in Joongang Ilbo)

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 7 (4). e12675 (Highlighted in Joongang Ilbo, 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 Joongang Ilbo, 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, 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, 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, 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, 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, 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 (OUTSIDE FRONT COVER FEATURED)

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