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  • 09월 11일 00시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제124회 학술발표회 및 총회 Entropy driven strategy to harness entire solar spectrum

등록일
2019년 8월 29일 17시 19분 56초
접수번호
1889
발표코드
MAT1-5 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 17시 : 20분
발표형식
분과기념
발표분야
Material Chemistry - Special Symposium on the Present and Future of Materials Chemistry
저자 및
공동저자
Doo-Hyun Ko
Department of Applied Chemistry, Kyung Hee University, Korea
The conversion and manipulation of light via lanthanide-based upconversion (UC) and downshifting (DS) show promise in numerous applications. We demonstrate the lanthanide-doped nanotemplates to improve conversion of ultraviolet and near-infrared to visible light through resonant-mode excitation. The templates are fabricated using nanoimprint technique wherein ordered arrays of nanoscale features are readily made over large areas. The practical applicability of this platform in photovoltaic devices is evaluated, showing distinctively enhanced efficiency. The material-agnostic nanopatterning methodology is further extended to nanopatterned thin films synthesized by a sol-gel-based solution to achieve simultaneous photonic and electrical enhancements in thin film photovoltaic devices. For further approach, we demonstrate the use of quaternary bulk heterojunctions composed of two conjugated polymer donors and two fullerene acceptors as a novel platform to produce high-efficiency and long-term durable organic photovoltaics. We attribute the enhanced stability to the significant suppression of domain growth and phase separation between the components via kinetic trapping effect.

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