Journals

2025

• Jaybum Kim, Kyeong-Soo Kang, Ji-Hwan Park, Chanjin Park, Minji Kim and Soo-Yeon Lee, "Oxide TFT-Based Micro-LED Pixel Circuit with Piecewise Linear Sweep Slope Signal for Improved Low Gray-Level Expression ", in Journal of the Society for Information Display. (accepted)

• Chanjin Park, Kyeong-Soo Kang, Ji-Hwan Park, Minji Kim and Soo-Yeon Lee, "High Resolution a-IGZO TFT-based AMOLED Pixel Circuit Enabling Multiple OLED Driving via Field Sequential Color Method", in Journal of Information Display. (accepted)

• JinKyu Lee, Sunyeol Bae, Seungyoon Shin, and Soo-Yeon Lee, "Mitigating Electrical Degradation in Ultra-Thin IGZO TFTs through Contact Engineering with Al2O3 Interlayer", in Applied Surface Science Advances, 29, 100827, 2025.

• Yumin Yun, Junhyeong Park, Minsik Kong, Ji-Ho Lee, Sunyeol Bae, Chanjin Park, and Soo-Yeon Lee, "Optoelectronic Neuromorphic System Based on Amorphous Indium-Gallium-Zinc-Oxide Thin-Film Transistor for Spiking Neural Networks", in Advanced Intelligent Systems,  2500402, pp. 1-13, 2025.

• Ji-Hwan Park, Kyeong-Soo Kang, Chanjin Park, Hee-Ok Kim, Jong-Heon Yang, Jae-Eun Pi, Yong-Duck Kim, Chun-Won Byun, and Soo-Yeon Lee, "Oxide TFT-Based Micro Light-Emitting Diode Pixel Circuit for Improving Low Gray-Level Expression by Employing Sweep Generators", in IEEE Transactions on Electron Devices, vol. 72, no. 7, pp. 3707-3711, 2025.

• Kyeong-Soo Kang, Ji-Hwan Park, Chanjin Park, Ji-Ho Lee, and Soo-Yeon Lee, "Inverter-Based MicroLED Pixel Circuit Using LTPO TFTs Achieving Submicrosecond Pulse-Width Modulation With Low Power Consumption Through Dynamic SWEEP Generation", in IEEE Access, vol. 13, pp. 65348-65355, 2025.

• Junhyeong Park, Yumin Yun, Sunyeol Bae, Yuseong Jang, Seungyoon Shin, and Soo-Yeon Lee, "High-Performance Synapse Arrays for Neuromorphic Computing via Floating Gate-Engineered IGZO Synaptic Transistors", in Advanced Science, 12, 2500568, 2025 (Front cover).

• Soobin An, Junhyeong Park, Jin Kyu Lee, Kyeong-Soo Kang, Ji-Hwan Park, Yuseong Jang, and Soo-Yeon Lee, "Extraction of Subgap Density of States in Amorphous In–Ga–Zn–O Thin-Film Transistors by Measuring Capacitor-on-Gate Structure", in IEEE Transactions on Electron Devices, vol.72, no.4, 2025.

• Seong-In Cho, Soobin An, and Soo-Yeon Lee, "Analysis of Channel Length-Dependent Degradation of IGZO TFTs under Positive Bias Stress through TCAD Simulation", in Journal of Information Display, pp.1-9, 2025.

2024

• Hyuckwon Kwon, Kyeong-Soo Kang, Ji-Hwan Park, Chanjin Park, and Soo-Yeon Lee, "A Mura model-based optical compensation for organic light-emitting diode display luminance nonuniformity utilizing two image capturing", in Journal of the Society for Information Display, vol.33, pp.24-33, 2024.

• Kyeong-Soo Kang, Hee-Ok Kim, Jong-Heon Yang, Jae-Eun Pi, Yong-Duck Kim, Chun-Won Byun, Ji-Hwan Park, Chanjin Park, Minji Kim, Yumin Yun, and Soo-Yeon Lee, "Depletion-Mode Oxide TFT-Based MicroLED Pixel Circuit for High-Current Pulsewidth Modulation With Low Driving Voltage", in IEEE Transactions on Electron Devices, vol.71, no. 11, pp.6820-6825, 2024.

• Chanjin Park, Hee-Ok Kim, Jong-Heon Yang, Jae-Eun Pi, Yong-Duck Kim, Chun-Won Byun, Kyeong-Soo Kang, Ji-Hwan Park, Minji Kim, Hyoungsik Nam, and Soo-Yeon Lee, "Highly Uniform Low Gray AMOLED Pixel using Stable Circuit and Duty Ratio Modulation Driving", in IEEE Journal of the Electron Devices Society, vol. 12, pp.668-676, 2024.

• Kyeongwoo Jang, Yuseong Jang, Soobin An, and Soo-Yeon Lee, "In-situ IGZO/ITON Heterostructure Phototransistor to Enhance Visible Light Detection", in IEEE Electron Device Letters, vol.45, no. 10, pp.1839-1842, 2024.

• Ji-Hwan Park, Kyeong-Soo Kang, Chanjin Park, and Soo-Yeon Lee, "A New 13T4C LTPO MicroLED Pixel Circuit Producing Highly Stable Driving Current by Minimizing Effect of Parasitic Capacitors and Stabilizing Capacitor Nodes," in IEEE Journal of the Electron Devices Society, vol. 12, pp. 472-478, 2024.

• Geun Woo Baek, Yeon Jun Kim, Jaekwon Kim, Jun Hyuk Chang, Uhjin Kim, Soobin An, Junhyeong Park, Sunkyu Yu, Wan Ki Bae, Jaehoon Lim, Soo-Yeon Lee, and Jeonghun Kwak, "Memristive Switching Mechanism in Colloidal InP/ZnSe/ZnS Quantum Dot-Based Synaptic Devices for Neuromorphic Computing", in Nano Letters, vol. 24, no. 19, pp. 5855-5861, 2024.

• Junhyeong Park, Yumin Yun, Minji Kim, and Soo-Yeon Lee, "Simulation and Optimization of IGZO-Based Neuromorphic System for Spiking Neural Networks," in IEEE Journal of the Electron Devices Society, vol. 12, pp.228-235, 2024.

2023

• Kyeong-Soo Kang, Ji-Hwan Park, ChanJin Park, Ji-Ho Lee, and Soo-Yeon Lee, "A New PWM Operational Scheme for MicroLED Displays Using Inverter and Dynamic SWEEP Signal Slope for Low Gray Level Expression," in IEEE Access, vol. 11, 2023.

• Junhyeong Park, Yuseong Jang, and Soo-Yeon Lee, "Optimization of post-annealing temperature for high-performance synaptic transistors based on In-Ga-Zn-O channel and trap layers," in AIP Advances, vol. 13, no. 12, 125314, 2023.

• Kyeong-Soo Kang, Ji-Hwan Park, ChanJin Park, Ji-Ho Lee, and Soo-Yeon Lee, "An a-IGZO TFT Based AMOLED Pixel Circuit Employing Stable Mobility Compensation Suppressing Degradation of Detected VTH," in IEEE Journal of the Electron Devices Society, vol. 12, pp. 7-13, 2023.

• Yuseong Jang, Jin Kyu Lee, Jinsung Mok, Junhyeong Park, Seung Yoon Shin, and Soo-Yeon Lee, "Suppression of redox reaction between IGZO surface and reducing agent TMA using oxidizing agent fluorine treatment," in RSC Advances, vol. 13, pp. 33269-33275, 2023.

• Jin Kyu Lee, Soobin An and Soo-Yeon Lee, "Self-Aligned Top-Gate IGZO TFT with Stepped Structure for Suppressing Short Channel Effect," in IEEE Electron Device Letters, vol. 44, pp. 1845-1848, 2023.

• Kyeong-Soo Kang, Ji-Hwan Park, Jimin Kang, Chanjin Park, Changwon Jeong, and Soo-Yeon Lee, "A Compact Amorphous In-Ga-Zn-Oxide Thin Film Transistor Pixel Circuit with Two Capacitors for Active Matrix Micro Light Emitting Diode Displays," in IEEE Journal of the Electron Devices Society, vol. 11, pp. 204-209, 2023.

• Junhyeong Park, Yuseong Jang, Jin Kyu Lee, Soobin An, Jinsung Mok, and Soo-Yeon Lee, "Synaptic Transistor Based on In-Ga-Zn-O Channel and Trap Layers with Highly Linear Conductance Modulation for Neuromorphic Computing," in Advanced Electronic Materials, vol. 9, no. 6, 2201306, 2023.

• Ji-Hwan Park, Kyeong-Soo Kang, Junhyeong Park, and Soo-Yeon Lee, "산화물 박막소자의 단기 열화 특성 분석 및 예측식 모델링," in The Transactions of the Korean Institute of Electrical Engineers, vol. 72, no. 3, pp. 402-405, 2023.

• Yuseong Jang, and Soo-Yeon Lee, "In Situ IGZO/ZnON Phototransistor Free of Persistent Photoconductivity with Enlarged Spectral Responses," in ACS Applied Electronic Materials, vol. 5, no. 1, pp. 509-519, 2023.

2022

• Yuseong Jang, Junhyeong Park, Jimin Kang, and Soo-Yeon Lee, "Amorphous InGaZnO (a-IGZO) Synaptic Transistor for Neuromorphic Computing," in ACS Applied Electronic Materials, vol. 4, no. 4, pp. 1427-1448, 2022 (Front Cover).

2021

• Jimin Kang, Kyeong Soo Kang, Ji-Hwan Park, Kee Chan Park and Soo-Yeon Lee, "A New Pixel Circuit Compensating for Strain-induced Luminance Reduction in Stretchable Active-Matrix Organic Light Emitting Diode Displays," in IEEE Electron Device Letters, Vol. 42, no.9, pp.1350-1353, Sept. 2021.

• Jaihyun Koh, Kyeongsoo Kang, Chaehun Shin, Soo-Yeon Lee and Sungroh Yoon, "Compensating Nonuniform OLED Pixel Brightness in a Vertical Blanking Interval by Learning TFT Characteristics," in IEEE Transactions on Electron Devices, vol. 68, no. 7, pp. 3396-3402, July 2021. 

• Kyeongsoo Kang, Jin Kyu Lee, Jimin Kang, Soo-Yeon Lee, "A Novel Real-Time TFT Threshold Voltage Compensation Method for AM-OLED Using Double Sampling of Source Node Voltage," in  IEEE Journal of the Electron Devices Society,  vol. 9, pp. 311-317, Feb. 2021. 

• Jungwoo Lee, Jongsu oh, Eunkyo Jung, Keechan Park, Jae-Hong Jeon, Soo-Yeon Lee, Yong-Sang Kim, " High-reliability gate driver circuit to prevent ripple voltage", in Journal of the Society for Information Display 29.1, 2021.

2020

• JoonHo Lee, Daehyun Kim, Joowon Yang, Kookchul Moon, Soo-Yeon Lee, Jaehong Jeon, Yongsang Kim, SeungChan Choi, Uijin Chung, KwonShik Park, Keechan Park, "Organic light-emitting diode display pixel circuit employing double-gate low-temperature poly-Si thin-film transistor and metal-oxide thin-film transistors", in Journal of the Society for Information Display,  vol. 28, no. 12, pp. 1003-1011, Sept. 2020.

• JoonHo Lee, Daehyun Kim, Joowon Yang, Kookchul Moon, Soo-Yeon Lee, Jaehong Jeon, Yongsang Kim, Keechan Park, "Correlation between the compensation time and the current deviation of organic LED pixel circuit", in Journal of the Society for Information Display, vol. 28, no. 11, pp. 882-891, June 2020.

• Hyunjun Yoo, Jewook Ha, Hyeonggyu Kim, Jiseok Seo, Soo-Yeon Lee, Yongtaek Hong, "Tunable Stability of All-Inkjet-Printed Double-Gate Carbon Nanotube Thin Film Transistors," in IEEE Electron Device Letters, vol. 41, no. 6, pp. 860-863, June 2020 

• Hyeonggyu Kim, Jiseok Seo, Narkhyeon Seong, Seunghwan Lee, Soo-Yeon Lee, Taehoon Kim, Yongtaek Hong, "Multidipping Technique for Fabrication Time Reduction and Performance Improvement of Solution‐Processed Single‐Walled Carbon Nanotube Thin‐Film Transistors", in Advanced Engineering Materials, vol. 22, no. 8, Feb. 2020.

• Kyung-Mo Jung, Jongsu Oh, Hyoeun Kim, Ariadna Schuck, Kyungbae Kim, Keechan Park, Jae-Hong Jeon, Soo-Yeon Lee, Yong-Sang Kim, "Stability improvement of solution-processed IGZO TFTs by fluorine diffusion from a CYTOP passivation layer." in Journal of Physics D: Applied Physics 53.35

• Jongsu Oh, Kyung-Mo Hung, Eunkyo Jung, Jungwoo Lee, Soo-Yeon Lee, Keechan Park, Jae-Hong Jeon, Yong-Sang Kim, "Novel Driving Methods of Gate Driver for Enhancement-and Depletion-Mode Oxide TFTs." in IEEE Journal of the Electron Devices Society, vol. 8, pp. 67-73, 2020.