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JOURNALS

2026

Front channel carrier confinement enabled by interface-engineered gradient InZnO TFTs via PEALD

Surfaces and Interfaces

Tae Hwan Boo , Seunghyeon Shin , Hwa Young Kim , Sunghwan Park , Sang-Hee Ko Park*

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2026

Interfacial effects of mo-based alloy electrodes on channel shortening and mobility extraction in oxide thin-film transistors

Surfaces and Interfaces

Seong-Jae Kim, Hye-In Yeom, Tae Kyu Nam, Jin Kim, Ji-Hwan Ha, Sang-Hee Ko Park, Jong Beom Ko*

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2026

Three-Dimensional Visualization of Conductive Filaments in TiO2 via Conductive Atomic Force Microscopy Tomography

Nano Letters

Kunwoo Park, Chaewon Gong, Sunghwan Park, Sang-Hee Ko Park, and Seungbum Hong*

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2026

Multimode Oxide-Based Optoelectronic Memtransistor for In-Sensor Vision Processing

Advanced Functional Materials

Min Gu Lee, Geunyoung Kim, HwaYoungKim, Do Hoon Kim, HanchanSong, Huisu Noh,Jungwan Noh, Seungwoo Lee, Sang-Hee KoPark, Himchan Cho, Kyung Min Kim*

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2026

Engineering Negative Capacitance in Hf0.5Zr0.5O2 for Low-Power and Reliable Charge Trap Flash Memory

ACS Applied Materials & Interfaces

Yunseok Nam, Sangho Lee, Yangjin Jung, Kang Kim, Jihye Ok, Jinwook Ha,Heemin Yoon, Mincheol Shin, Sang-Hee Ko Park, Jinho Ahn,*and Sanghun Jeon*

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2025

High-Mobility IZO Thin-Film Transistors Enabled by Precise Hydrogen Control Using a SiO2−Al2O3 Supercycle via Plasma Enhanced Atomic Layer Deposition

ACS Applied Materials & Interfaces

Sunghwan Park, Seong-In Cho, Hwa Young Kim, Sang-Hee Ko Park*, and Jong Beom Ko*

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2025

Atomic layer deposition-enabled trench oxide thin-film transistors with selective dry etching for high-current driving applications

Journal of Alloys and Compounds

Do Hyung Kim, Hyunjun An, Jong Beom Ko* , Sang-Hee Ko Park*

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2025

Low-Temperature (450◦C) Crystallization of Al:HfO2 Ferroelectric Thin Films Enabled by Microwave Annealing Process

IEEE Transactions on Electron Device

Giuk Kim, Lingwei Zhang, Sangho Lee, Youngjin Lim, Kang Kim, Il-Kwon Oh, Sang-Hee Ko Park, Jinho Ahn, and Sanghun Jeon

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2025

Optical characteristics of passivation layers for ultra-low-loss on-chip devices in the mid-infrared

APL Materials

Daewon Suk, Kiyoung Ko, Jingyu Kim, Sang-Hee Ko Park, Duk-Yong Choi, and Hansuek Lee

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2025

Spatially Correlated Oxygen Vacancies, Electrons and Conducting Paths in TiO2 Thin Films

ACS Applied Materials & Interfaces

Chaewon Gong, Sunghwan Park, Seongmun Eom, Youngwoo Choi, Sang-Hee Ko Park, and Seungbum Hong*

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2025

Optimized hydrogen-supplying gate insulator for high-mobility indium oxide TFTs via atomic-level oxygen reactant engineering

Journal of Alloys and Compounds

Hwa Young Kim, Seong-In Cho, Dong Yeob Shin, Kwun-Bum Chung, Sang-Hee Ko Park, Jong Beom Ko*

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2025

Surface passivation of natural photosystem-based photoelectrode for efficient and sustainable bio-photovoltaic applications

Journal of Industrial and Engineering Chemistry

Nyeongbeen Jo, Sehun Jeong, Sang-Hee Ko Park, Kwang Min Kim, Yoonsung Nam*

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2025

Ultrathin flexible pressure sensors using microbead embedded nanofibrous membrane for wearable applications

Journal of Alloys and Compounds

Taiyu Jin, Yan Pan, Sang-Hee Ko Park, Da-Wei Fang

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2024

High Mobility, LowOff-Current, and Flexible Fiber-Based a InGaZnO Thin-FilmTransistors to ward Wearable Textile OLED Displays

ACS Applied Materials & Interfaces

Chan Young Kim, Yong Ha Hwang, Jaehyeock Chang, Seong Uk Kong, Sang-Hee Ko Park, and Kyung Cheol Choi

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2024

Optimizing De-trap Pulses in Gate-injection Type Ferroelectric NAND Cells to Minimize Read After Write Delay Issue

IEEE Electron Device Letters

Giuk Kim, Hyojun Choi, Hongrae Cho, Sangho Lee, Hunbeom Shin, Hyunjun Kang, Hoon Kim, Seokjoong Shin, Seonjae Park, Sunseong Kwon, Youngjin Lim, Kang Kim, Jong Min Chung, Il-Kwon Oh, Sang-Hee Ko Park, Jinho Ahn, and Sanghun Jeon

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2024

Kinetically Stabilized Hafnia Ferroelectric of Al-Doped HfO2 Film by Fast Ramping and Fast Cooling Process

IEEE Transactions on Electron Devices

Lingwei Zhang+ , Giuk Kim+ , Sangho Lee , Hunbeom Shin , Youngjin Lim, Kang Kim, Il-Kwon Oh , Sang-Hee Ko Park , Jinho Ahn and Sanghun Jeon

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2024

First Demonstration of Thermally Stable Zr:HfO2 Ferroelectrics via Inserting AlN Interlayer

IEEE Electron Device Letters

Sangmok Lee+ , Giuk Kim+ , Sangho Lee , Hunbeom Shin , Youngjin Lim, Kang Kim, Do-Hyung Kim , Il-Kwon Oh , Sang-Hee Ko Park , Jinho Ahn and Sanghun Jeon

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2024

Experimental Analysis on the Interaction Between Interface Trap Charges and Polarization on the Memory Window of Metal–Ferroelectric–Insulator–Si (MFIS) FeFET

IEEE Transactions on Electron Devices

Giuk Kim+ , Hyojun Choi+ ,Sangho Lee , Hunbeom Shin , Sangmok Lee , Yunseok Nam, Hyunjun Kang, Seokjoong Shin, Hoon Kim, Youngjin Lim, Kang Kim, Il-Kwon Oh , Sang-Hee Ko Park , Jinho Ahn , and Sanghun Jeon

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2024

Positive Interaction Between Charge Trapping and Polarization Switching in Metal-Interlayer-Ferroelectric-Interlayer-Silicon (MIFIS) Ferroelectric Field-Effect Transistor

IEEE Electron Device Letters

Hyojun Choi+ , Giuk Kim+ , Sangho Lee, Hunbeom Shin, Youngjin Lim, Kang Kim, Do-Hyung Kim, Il-Kwon Oh, Sang-Hee Ko Park, Jinho Ahn, and Sanghun Jeon

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2024

Upside–Down Annealing of Oxide Thin-Film Transistorsand its Analysis Using Hydrogen-Diffusion Model

Physica Status Solidi a

SeongJin Park, Kang Kim, and Sang-Hee Ko Park

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PUBLICATION

Front channel carrier confinement enabled by interface-engineered gradient InZnO TFTs via PEALD

Interfacial effects of mo-based alloy electrodes on channel shortening and mobility extraction in oxide thin-film transistors

Three-Dimensional Visualization of Conductive Filaments in TiO2 via Conductive Atomic Force Microscopy Tomography

Multimode Oxide-Based Optoelectronic Memtransistor for In-Sensor Vision Processing

Engineering Negative Capacitance in Hf0.5Zr0.5O2 for Low-Power and Reliable Charge Trap Flash Memory

High-Mobility IZO Thin-Film Transistors Enabled by Precise Hydrogen Control Using a SiO2−Al2O3 Supercycle via Plasma Enhanced Atomic Layer Deposition

Atomic layer deposition-enabled trench oxide thin-film transistors with selective dry etching for high-current driving applications

Low-Temperature (450◦C) Crystallization of Al:HfO2 Ferroelectric Thin Films Enabled by Microwave Annealing Process

Optical characteristics of passivation layers for ultra-low-loss on-chip devices in the mid-infrared

Spatially Correlated Oxygen Vacancies, Electrons and Conducting Paths in TiO2 Thin Films

Optimized hydrogen-supplying gate insulator for high-mobility indium oxide TFTs via atomic-level oxygen reactant engineering

Surface passivation of natural photosystem-based photoelectrode for efficient and sustainable bio-photovoltaic applications

Ultrathin flexible pressure sensors using microbead embedded nanofibrous membrane for wearable applications

High Mobility, LowOff-Current, and Flexible Fiber-Based a InGaZnO Thin-FilmTransistors to ward Wearable Textile OLED Displays

Optimizing De-trap Pulses in Gate-injection Type Ferroelectric NAND Cells to Minimize Read After Write Delay Issue

Kinetically Stabilized Hafnia Ferroelectric of Al-Doped HfO2 Film by Fast Ramping and Fast Cooling Process

First Demonstration of Thermally Stable Zr:HfO2 Ferroelectrics via Inserting AlN Interlayer

Experimental Analysis on the Interaction Between Interface Trap Charges and Polarization on the Memory Window of Metal–Ferroelectric–Insulator–Si (MFIS) FeFET

Positive Interaction Between Charge Trapping and Polarization Switching in Metal-Interlayer-Ferroelectric-Interlayer-Silicon (MIFIS) Ferroelectric Field-Effect Transistor

Upside–Down Annealing of Oxide Thin-Film Transistorsand its Analysis Using Hydrogen-Diffusion Model

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