2020.03 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

- 2020.02
B.S. in Department of Applied Chemistry, Kyungpook National University, Korea

「Publications」

Gunho Moon†, Suk-Ho Lee†, Hyunje Cho†, Heewon Park, Heonsu Ahn, Chang-Won Choi, Sera Yang, Seung-Hyun Shin, Jinjae Kim, Jong Yun Choi, Seok Young Min, Sumin Lee, Hyunjin Jung, Jaeyoung Kim, Jewook Park, Han Woong Yeom, Gil-Ho Lee, Myungchul Oh, Jong-Hoon Kang, Hyunyong Choi, Cheol-Joo Kim, Jonghwan Kim, Si-Young Choi and Moon-Ho Jo*, "Single-crystalline monolayer semiconductors with coherent quantum transport by vicinal van der Waals epitaxy", Nature electronics XX, XX (2025)

GunWoo Yoo†, Taejoon Mo†, Yong-Sung Kim†, Chang-Won Choi, Gunho Moon, SuMin Lee, Chan-Cuk Hwang, Woo-Ju Lee, Min-Yeong Choi, JongYun Choi, Si-Young Choi*, Moon-Ho Jo* and Cheol-Joo Kim* (†equally contributed authors), "Interstitially bridged van der Waals interface enabling stacking-fault-free, layer-by-layer epitaxy", ACS Nano XX, XX (2025)

Seokho Moon, Odongo Francis Ngome Okello, Adrien Rousseau, Chang-Won Choi, Youngjae Kim, Yunjae Park, Jiye Kim, Jaewon Kim, Minhyuk Kim, Pierre Valvin, Jaehee Cho, Kenji Watanabe, Takashi Taniguchi, Hu Young Jeong, Giorgia Fugallo, Wilfried Desrat, Feng Ding, JaeDong Lee, Bernard Gil, Guillaume Cassabois*, Si-Young Choi* & Jong Kyu Kim*, "Wafer-scale AA-stacked hexagonal boron nitride grown on a GaN substrate", Nature Materials 24, 843-851 (2025)

Jiye Kim, Jaesub Song, Hyunjoung Kwak, Chang-Won Choi, Kyungmi Noh, Seokho Moon, Hyeonwoong Hwang, Inyong Hwang, Hokyeong Jeong, Si-Young Choi, Seyoung Kim, Jong Kyu Kim*, "Attojoule Hexagonal Boron Nitride-Based Memristor for High-Performance Neuromorphic Computing", Small 20, 202403737 (2024)

Min-Yeong Choi†, Chang-Won Choi†, Dong-Yeong Kim, Moon-Ho Jo, Yong-Sung Kim*, Si-Young Choi*, and Cheol-Joo Kim* († equally contributed authors), "Thermodynamically Driven Tilt Grain Boundaries of Monolayer Crystals Using Catalytic Liquid Alloys", Nano Letters 23, 4516-4523 (2023)

Jiye Kim, Kyung-Yeon Doh, Seokho Moon, Chang-Won Choi, Hokyeong Jeong, Jaewon Kim, Wonseok Yoo, Kyungwook Park, Kyeongock Chong, Chunhyng Chung, Hanmei Choi, Si-Young Choi, Donghwa Lee, and Jong Kyu Kim*, "Conformal Growth of Hexagonal Boron Nitride on High-Aspect Ratio Silicon-Based Nanotrenches", Chemistry of Materials 35, 2429-2438 (2023)

Min-Yeong Choi†, Chang-Won Choi†, Seong-Jun Yang, Hojeong Lee, Shinyoung Choi, Jun-Ho Park, Jong Heo, Si-Young Choi*, and Cheol-Joo Kim* († equally contributed authors), "Substrate-Dependent Growth Mode Control of MoS2 Monolayers: Implications for Hydrogen Evolution and Field-Effect Transistors", ACS Applied Nano Materials 5, 4336-4342 (2022)

Kwang Hee Kim†, Chang-Won Choi†, Seokhyun Choung, Yoonjun Cho, Sungsoon Kim, Cheoulwoo Oh, Kug-Seung Lee, Chang-Lyoul Lee, Kan Zhang, Jeong Woo Han*, Si-Young Choi*, and Jong Hyeok Park* († equally contributed authors), "Continuous Oxygen Vacancy Gradient in TiO2 Photoelectrodes by a Photoelectrochemical-Driven “Self-Purification” Process", Advanced Energy Materials 12, 2103495 (2022)

Jun-Ho Park, Seong-Jun Yang, Chang-Won Choi, Si-Young Choi*, and Cheol-Joo Kim*, "Pristine Graphene Insertion at the Metal/Semiconductor Interface to Minimize Metal-Induced Gap States", ACS Applied Materials & Interfaces 13, 22828-22835 (2021)


「Patents」

[Application] Liquid alloy catalyst, method of manufacturing same and two-dimensional chalcogenide thin film comprising thermodynamically induced grain boundary in a single-layer crystal using same (액상 합금촉매, 그의 제조방법 및 그를 이용한 단층 결정 내 열역학적으로 유도된 결정립계를 포함하는 이차원-칼코게나이드 박막), KR - Cheol-Joo Kim, Min-Yeong Choi, Si-Young Choi, Chang-Won Choi (2024)

2020.09 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2014.03 - 2020.08
B.S. in Department of Materials Science and Engineering, Ajou University, Korea

「Publications」

Si Jin Seong, Minseuk Kim, Jeong-Min Kim, Changil Park, Semin Ko, Ja Yeon Kim, Mihye Wu, Young-Chul Song, Si-Young Choi*, Sungho Choi*, "Controlled crystal growth and electrode formation of single crystalline Li(Ni,Mn)2O4 spinel cathodes", Journal of Alloys and Compounds, 961, 171082 (2023)

2021.03 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2017.03 - 2021.02
B.S. in Department of Applied Physics, Kyung Hee University, Korea

「Publications」

Yujeong Lee†, Yeon-Seo Nam†, Daseob Yoon, Hyunwoo Jang, Yunkyu Park, Youngho Kang*, Si-Young Choi*, Junwoo Son*, "Synthesis of Cubic Ni3Sn Bimetallic Nanoparticles as a New Polymorph by Sequential Exsolution", Advanced Materials XX, XX (2026)

Jinhyuk Jang†, Yeongrok Jin†, Yeon-Seo Nam†, Heung-Sik Park, Jaegyu Kim, Kyeong Tae Kang, Yerin So, Jiwoung Choi, Youngchang Choi, Jaechan Shim, Panithan Sriboriboon, Dong Kyu Lee, Kyoung-June Go, Gi-Yeop Kim, Seungbum Hong, Jun Hee Lee, Daesu Lee, Myung-Geun Han, Junwoo Son, Yunseok Kim, Hiroki Taniguchi, Seokhyeong Kang, Jang-Sik Lee, He Tian, Chan-Ho Yang, Yimei Zhu, Sang-Wook Cheong, Woo Seok Choi*, Jaekwang Lee*, and Si-Young Choi* († equally contributed authors), "Sub-unit-cell-segmented ferroelectricity in brownmillerite oxides by phonon decoupling", Nature Materials XX, 1-8 (2025)

Yujeong Lee†, Daseob Yoon†, Yeon-Seo Nam†, Sangbae Yua, Chaesung Limb, Hyeji Sim, Yunkyu Park, Jeong Woo Han, Si-Young Choi*, and Junwoo Son*, "Accelerating metal nanoparticle exsolution by exploiting tolerance factor of perovskite stannate", Materials Horizons 11, 3835-3843 (2024)

Minguk Jo, Ye-Won Seo, HyoJin Yoon, Yeon-Seo Nam, Si-Young Choi, Byung Joon Choi & Junwoo Son*, "Embedded metallic nanoparticles facilitate metastability of switchable metallic domains in Mott threshold switches", Nature communications 13, 4609 (2022)

Yujeong Lee†, Daseob Yoon†, Sangbae Yu, Hyeji Sim, Yunkyu Park, Yeon-Seo Nam, Ki-Jeong Kim, Si-Young Choi, Youngho Kang, and Junwoo Son* († equally contributed authors), "Reversible Manipulation of Photoconductivity Caused by Surface Oxygen Vacancies in Perovskite Stannates with Ultraviolet Light", Advanced Materials 34, 2107650 (2021)

2021.09 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2016.03~ 2021.08
B.S. in Department of Materials Science and Engineering, Kyungpook National University, Korea

「Publications」

Jaerim Kim, Sung-Hyuk Her, Dong-Seok Kim, Bongwon Kim, Sang-Mun Jung, Jiye Kim, Hyeonwoong Hwang, Kyu-Su Kim, Yong-Tae Kim, Si-Young Choi, Jong Kyu Kim*, "Stabilized Co Single-Atom Catalyst via Ion Implantation for Efficient Hydrogen Production", Small XX, XX (2025)

Jo Hyun Yun†, Minki Sung†, Minhyuk Choi†, Kyoo Kim†, Wooin Yang, Dowook Kim, Min Joong Kim, Sung-Hyuk Her, Si-Young Choi, Tae-Hwan Kim*, Jae Young Kim*, Han Woong Yeom*, and Jun Sung Kim* († equally contributed authors), "Flat-Band Electronic Bipolarity in a Janus and Kagome vander Waals Semiconductor Nb3TeI7", Advanced Materials XX, 2415045 (2025)

2022.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2018.03 - 2021.08
B.S. in Department of Integrative Engineering (Nanomaterials Engineering), Chung-Ang University, Korea

「Publications」

Dongwon Shin†, Inseo Kim†, Min-Su Kim, Yu-Qiao Zhang, Woo Tack Lim, Si-Young Choi, Minseok Choi*, Hiromichi ohta*, and Woo seok Choi*, "Improving 2D-ness to enhance thermopower in oxide superlattices", Reports on Progress in Physics XX, XX (2025)

Kil-Dong Sung*,†, Min-Su Kim†, Jinhyuk Jang, Gi-Yeop Kim, Kyung Song, Si-Young Choi*, Seungbum Hong, "Selective a-domain switching by sub-coercive field in PbTiO3 thin films", Microstructures XX, XX (2025)

Min-Su Kim†, Kyoungjun Lee†, Ryo Ishikawa†, Kyung Song, Naafis Ahnaf Shahed, Ki-Tae Eom, Mark S. Rzchowski, Evgeny Y. Tsymbal, Naoya Shibata, Teruyasu Mizoguchi*, Chang-Beom Eom*, and Si-Young Choi*, "Charge Disproportionation at Twisted SrTiO3 Bilayer Interface Driven by Local Atomic Registry", ACS Nano 19, 39714-39724 (2025)

So-Yeon Kim†, Yu-Jeong Yang†, Eun Gyu Lee, Min-Su Kim, Kyoung-June Go, Minseuk Kim, Gi-Yeop Kim, Sora Lee, Chiho Jo, Sungho Choi*, Si-Young Choi*, "Site selectivity of single dopant in high-nickel cathodes for lithium-ion batteries", Chemical Engineering Journal 482, 148869 (2024)

Yong-Jun Kwon, Youngki Yeo, Min-Su Kim, Yong-Jin Kim, Heung-Sik Park, Jaegyu Kim, Si-Young Choi, and Chan-Ho Yang*, "Observation of Hidden Polar Phases and Flux Closure Domain Topology in Bi2WO6 Thin Films", Nano Letters 23, 4557-4563 (2023)

2023.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2017.03 - 2023.02
B.S. in Department of Materials Science and Engineering, Pusan National University, Korea

「Publications」

Joonhee Ma†, Wooseok Lee†, Jae Hak Kim, Jaemin Jeong, Kyu-min Jo, Si-Young Choi*, Seoin Back*, and Soo Young Kim* († equally contributed authors), "Leveraging the Intermetal Distance in Dual-Atom Catalysts: Revealing Optimized Synergistic Interactions for CO2 Electroreduction", ACS Nano XX, XX (2025)

Yu-Rim Hong†, Nitee Kumari†, Junwon Kim†, Ankur Maji, Min Gyu Kim, Kyu-Min Jo, Si-Young Choi, Ji Hoon Shim*, In Su Lee* († equally contributed authors), "High-Density Catalytic Sites Grafting on 2D-Metal Oxides for Acceptorless Alcohol Dehydrogenation", Angewandte Chemie International Edition 64, e202423169 (2025)

2024.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2018.03 - 2024.02
B.S. in Department of Materials Science and Engineering, Ajou University, Korea

2024.02 - present
Ph.D. Course in Department of Materials Science and Engineering, POSTECH, Korea

2021.03 - 2023.02
M.S. in Department of Materials Science and Engineering, Gyeongsang National University, Korea

2014.03 - 2021.02
B.S. in Department of Materials Science and Engineering, Gyeongsang National University, Korea

「Publications」

Dong Won Kim, Eun-Jeong Kim, Chul-Lee Lee, Kyoung-Seok Moon*, "Spontaneous adsorption effect of graphitic carbon nitride nanosheets to improve sintering behavior of yttria-stabilized zirconia microbeads", Applied Surface Science 654, 159447 (2024)

Chul-Lee Lee, and Kyoung-Seok Moon*, "Grain Shape and Grain Growth Behavior in the (K0.5Na0.5)NbO3-CaZrO3 System", Journal of Powder Materials 29, 110-117 (2022)

2025.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2020.03 - 2025.02
B.S. in Department of Materials Science and Engineering, POSTECH, Korea

2025.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2021.03 - 2025.02
B.S. in Department of Materials Science and Engineering, Pukyong National University, Korea

2025.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2018.03 - 2025.02
B.S. in Department of Materials Science and Engineering, Inha University, Korea

2025. 09 - present
Ph.D. Course in Department of Materials Science and Engineering, POSTECH, Korea

2010. 05 - present
Principal Researcher in RIST

2008. 03 - 2010. 02
M.S. in Department of Materials Science and Engineering, Yonsei University

2001. 03 - 2008. 02
B.S. in Department of Materials Science and Engineering, Yonsei University

2026.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2020.03 - 2026.02
B.S. in Department of Advanced Materials Engineering, Kyung Hee University, Korea

2026.02 - present
M.S. - Ph.D. Integrated Course in Department of Materials Science and Engineering, POSTECH, Korea

2020.03 - 2026.02
B.S. in Department of Materials Science and Engineering, Gachon University, Korea

2024.02 - present
B.S. in Department of Semiconductor engineering, POSTECH, Korea