S
Segeun Jang
Researcher at Kookmin University
Publications - 45
Citations - 831
Segeun Jang is an academic researcher from Kookmin University. The author has contributed to research in topics: Membrane & Electrolyte. The author has an hindex of 14, co-authored 39 publications receiving 535 citations. Previous affiliations of Segeun Jang include Seoul National University & Hanbat National University.
Papers
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Journal ArticleDOI
Moth-Eye TiO2 Layer for Improving Light Harvesting Efficiency in Perovskite Solar Cells.
Seong Min Kang,Segeun Jang,Jong-Kwon Lee,Jungjin Yoon,Dong-Eun Yoo,Jin-Wook Lee,Mansoo Choi,Nam-Gyu Park +7 more
TL;DR: A moth-eye nanostructured mp-TiO2 film using conventional lithography, nano-imprinting and polydimethyl-siloxane (PDMS) stamping methods is demonstrated for the first time.
Journal ArticleDOI
Multiplex lithography for multilevel multiscale architectures and its application to polymer electrolyte membrane fuel cell
Hyesung Cho,Sang Moon Kim,Yun Sik Kang,Junsoo Kim,Segeun Jang,Minhyoung Kim,Hyunchul Park,Hyunchul Park,Jung Won Bang,Soonmin Seo,Kahp-Yang Suh,Yung-Eun Sung,Mansoo Choi +12 more
TL;DR: A simple yet versatile strategy that allows for the LEGO-like integrations of microscale membranes by quantitatively controlling the oxygen inhibition effects of ultraviolet-curable materials, leading to multilevel multiscale architectures.
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High-performance Fuel Cell with Stretched Catalyst-Coated Membrane: One-step Formation of Cracked Electrode.
Sang Moon Kim,Chi-Yeong Ahn,Yong-Hun Cho,Sungjun Kim,Wonchan Hwang,Segeun Jang,Sung Soo Shin,Gunhee Lee,Yung-Eun Sung,Mansoo Choi +9 more
TL;DR: This is the first attempt to enhance the performance of PEMFC by using cracks which are generally considered as defects, and mechanical stretching of catalyst-coated Nafion membrane led to a decrease in membrane resistance and an improvement in mass transport, which resulted in enhanced device performance.
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Multifunctional Moth-Eye TiO2/PDMS Pads with High Transmittance and UV Filtering.
TL;DR: This work reports a facile fabrication method for constructing multifunctional moth-eye TiO2/polydimethylsiloxane (PDMS) pads using soft nano-imprinting lithography and a gas-phase-deposited thin sacrificial layer to achieve a desired multiscale-patterned surface.
Journal ArticleDOI
Guided cracking of electrodes by stretching prism-patterned membrane electrode assemblies for high-performance fuel cells.
Chi-Yeong Ahn,Segeun Jang,Yong-Hun Cho,Jiwoo Choi,Sungjun Kim,Sang Moon Kim,Yung-Eun Sung,Mansoo Choi +7 more
TL;DR: Guided cracks were successfully generated in an electrode using the concentrated surface stress of a prism-patterned Nafion membrane and showed better performance than conventional MEAs, mainly because of the improved water transport.