Korea University · Engineering
이 교수의 연구실은 유연성과 높은 전도성, 내구성을 동시에 확보한 전도성 필름 및 전극 소재 개발에 초점을 맞추고 있습니다. 특히 구리 기반 투명 전도 전극, 탄소 나노튜브 기반 태양전지 전극, 그리고 망간 도핑된 탄소 나노섬유를 활용한 유연한 슈퍼커파시터 등 에너지 변환 및 저장 소자에 응용 가능한 나노소재를 연구하고 있습니다. 고성능과 경량화를 동시에 구현하는 웨어러블 에너지 장치의 실현 가능성을 높이기 위한 기초 소재 기반의 혁신적 기술 개발이 핵심 과제입니다.
Figures are computed from collected data and may differ slightly.
Copper has attracted significant interests as an abundant and low‐cost alternative material for flexible transparent conducting electrodes (FTCEs). However, Cu‐based FTCEs still present unsolved technical issues, such as their inferior light transmittance and oxidation durability compared to conventional indium tin oxide (ITO) and silver metal electrodes. This study reports a novel technique for fabricating highly efficient FTCEs composed of a copper ultrathin film sandwiched between zinc oxides
A highly efficient light-scattering layer based on a silica nanoparticle array was fabricated on a flexible polymer substrate by employing a direct vacuum deposition process at room temperature, facilitating a power conversion efficiency of 7.42% from a flexible organic solar cell.
Carbon nanotube electrode–laminated perovskite solar cells in combination with n‐type tunnel oxide–passivated contact silicon solar cells demonstrate a high power conversion efficiency (PCE) of 24.42% when stacked in tandem. This is compared with conventional indium tin oxide/MoO x ‐deposited perovskite solar cells which give an efficiency of 22.35% when stacked in the same four‐terminal tandem system. Despite higher transmittance of the carbon nanotube electrode than that of the indium tin oxid
Electrodes for flexible supercapacitors were fabricated from manganese-doped carbon nanofibers (Mn-CNF) decorated with carbon-coated Co-CoOx (C/Co-CoOx) nanotubes. The Mn-doped polyacrylonitrile (PAN)–2-methylimidazole (2MI) solution was electrospun using optimized Mn concentrations and ZIF-67 was then surface loaded by wet impregnation with added polyvinylpyrrolidone (PVP). These ZIF-67 loaded Mn-fibers, when annealed, resulted in carbon-coated C/Co-CoOx nanotubes on the Mn-CNF surface. In the
Currently, lightweight wearable energy storage devices are in great demand owing to their use in wearable electronics and energy-efficient electric vehicles. Freestanding carbon nanofibers replace the need for metal substrates while providing a rapid electrical network owing to their excellent electrical properties. Bimetallic oxides with multivalent oxidation states facilitate the rapid transfer of electrolytic ions owing to efficient Faradaic reactions, thereby enhancing the overall energy sto
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