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Bonhyeong Koo
Researcher at KAIST
Publications - 18
Citations - 360
Bonhyeong Koo is an academic researcher from KAIST. The author has contributed to research in topics: Photocathode & Catalysis. The author has an hindex of 9, co-authored 17 publications receiving 227 citations. Previous affiliations of Bonhyeong Koo include Pohang University of Science and Technology.
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Journal ArticleDOI
Amorphizing noble metal chalcogenide catalysts at the single-layer limit towards hydrogen production
Yongmin He,Liren Liu,Chao Zhu,Shasha Guo,Prafful Golani,Bonhyeong Koo,Pengyi Tang,Zhiqiang Zhao,Mangzhang Xu,Peng Yu,Xin Zhou,Caitian Gao,Xuewen Wang,Zude Shi,Lu Zheng,Jiefu Yang,Byungha Shin,Jordi Arbiol,Huigao Duan,Yonghua Du,Marc Heggen,Rafal E. Dunin-Borkowski,Wanlin Guo,Qi Jie Wang,Zhuhua Zhang,Zheng Liu +25 more
TL;DR: In this paper , the authors demonstrate the fabrication of a wafer-size amorphous PtSex film on a SiO2 substate via a low-temperature amorphization strategy, which offers single-atom-layer Pt catalysts with high atom utilization.
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Self-Assembled and Highly Selective Sensors Based on Air-Bridge-Structured Nanowire Junction Arrays
TL;DR: An air-bridge-structured nanowire junction array platform that capable of reliably discriminating between three gases in air is described and sensors were tested for their ability to distinguish three gases when the data was classified using linear discriminant analysis.
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Reduced Graphene Oxide as a Catalyst Binder: Greatly Enhanced Photoelectrochemical Stability of Cu(In,Ga)Se2 Photocathode for Solar Water Splitting
Bonhyeong Koo,Segi Byun,Sung-Wook Nam,Song-Yi Moon,Suncheul Kim,Jeong Young Park,Byung Tae Ahn,Byungha Shin +7 more
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Nano-branched transparent conducting oxides: beyond the brittleness limit for flexible electrode applications.
TL;DR: The cross-linked ITO nano-branches have superior mechanical flexibility compared to ITO bulk film without any cracks even with a bending radius of 0.1 cm and show far superior thermal stability in conductivity without any degradation even at a temperature of 200 °C and a humidity of 90%.
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Tailoring Photoelectrochemical Performance and Stability of Cu(In,Ga)Se2 Photocathode via TiO2-Coupled Buffer Layers.
Bonhyeong Koo,Sung-Wook Nam,Richard Haight,Suncheul Kim,Seungtaeg Oh,Minhyung Cho,Jihun Oh,Jeong Yong Lee,Byung Tae Ahn,Byungha Shin +9 more
TL;DR: It is identified that the insertion of TiO2 overlayer on p-CIGS/n-buffer layers significantly improves the PEC performance, and the stability of a CIGS-based photocathode can be improved by careful design of the structure.