Y
Yun Jeong Hwang
Researcher at Seoul National University
Publications - 144
Citations - 7938
Yun Jeong Hwang is an academic researcher from Seoul National University. The author has contributed to research in topics: Catalysis & Copper indium gallium selenide solar cells. The author has an hindex of 36, co-authored 129 publications receiving 5508 citations. Previous affiliations of Yun Jeong Hwang include KAIST & Korea University.
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Journal ArticleDOI
High Density n-Si/n-TiO2 Core/Shell Nanowire Arrays with Enhanced Photoactivity
TL;DR: It is observed that highly dense Si/TiO(2) core/shell nanowire arrays enhanced the photocurrent by 2.5 times compared to planar Si/ TiO( 2) structure due to their low reflectance and high surface area.
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Achieving Selective and Efficient Electrocatalytic Activity for CO2 Reduction Using Immobilized Silver Nanoparticles.
Cheonghee Kim,Hyo Sang Jeon,Hyo Sang Jeon,Taedaehyeong Eom,Michael Shincheon Jee,Michael Shincheon Jee,Hyungjun Kim,Cynthia M. Friend,Byoung Koun Min,Byoung Koun Min,Byoung Koun Min,Yun Jeong Hwang,Yun Jeong Hwang +12 more
TL;DR: DFT calculations enlightened that the specific interaction between Ag nanoparticle and the anchoring agents modified the catalyst surface to have a selectively higher affinity to the intermediate COOH over CO, which effectively lowers the overpotential.
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Photoelectrochemical properties of TiO2 nanowire arrays: a study of the dependence on length and atomic layer deposition coating.
TL;DR: The results demonstrate that ALD coating improves the charge collection efficiency from TiO(2) nanowires due to the passivation of surface states and an increase in surface area, and propose that epitaxial coating on materials is a viable approach to improving their energy conversion efficiency.
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Mixed Copper States in Anodized Cu Electrocatalyst for Stable and Selective Ethylene Production from CO2 Reduction.
Si Young Lee,Hyejin Jung,Hyejin Jung,Nak Kyoon Kim,Hyung Suk Oh,Byoung Koun Min,Byoung Koun Min,Yun Jeong Hwang,Yun Jeong Hwang +8 more
TL;DR: Results show the selectivity of ethylene to methane in O- Cu combination catalysts is influenced by the electrochemical reduction environment related to the mixed valences, which will provide new strategies to improve durability of O-Cu combination catalyststs for C-C coupling products from electrochemical CO2 conversion.
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Single crystalline mesoporous silicon nanowires.
TL;DR: A novel electroless etching synthesis of monolithic, single-crystalline, mesoporous silicon nanowire arrays with a high surface area and luminescent properties consistent with conventional porous silicon materials is demonstrated.