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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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2024

Atomic layer deposition of multicomponent amorphous oxide semiconductors with sequential dosing of metal precursors

Materials Letters

Jong Beom Ko and Sang-Hee Ko Park*

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2024

Modifying Sub-Gap States with Hydrogen Incorporation from Source/Drain Alloys for Oxide Phototransistors

Materials Letters

Wooseok Jeong, Seong-In Cho, Sang-Hee Ko Park, and Jong Beom Ko*

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2023

Contact Properties of a Low-resistance Aluminum-based Electrode with Metal Capping Layers in Vertical Oxide Thin-film Transistors

Journal of Materials Chemistry C

Sori Jeon, Kwang-Heum Lee, Seunghee Lee, Seong-In Cho, Chi-sun Hwang, Jong Beom Ko*, and Sang-Hee Ko Park*

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2023

Engineering a sub-nanometer interface tailoring layer for precise hydrogen incorporation and defect passivation for high-end oxide thin-film transistors

ACS Applied Materials & Interfaces

Jong Beom Ko, Seong-In Cho, and Sang-Hee Ko Park*

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2023

Rapid and simultaneous multiple detection of a tripledemic using a dual-gate oxide semiconductor thin-film transistor-based immunosensor

Biosensors and Bioelectronics

Sehun Jeong+, Seong Uk Son+, Jingyu Kim, Seong-In Cho, Taejoon Kang, Sunjoo Kim, Eun-Kyung Lim*, and Sang-Hee Ko Park*

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PUBLICATION

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

Atomic layer deposition of multicomponent amorphous oxide semiconductors with sequential dosing of metal precursors

Modifying Sub-Gap States with Hydrogen Incorporation from Source/Drain Alloys for Oxide Phototransistors

Contact Properties of a Low-resistance Aluminum-based Electrode with Metal Capping Layers in Vertical Oxide Thin-film Transistors

Engineering a sub-nanometer interface tailoring layer for precise hydrogen incorporation and defect passivation for high-end oxide thin-film transistors

Rapid and simultaneous multiple detection of a tripledemic using a dual-gate oxide semiconductor thin-film transistor-based immunosensor

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