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  • 09월 04일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Fabrication of macroporous photoelectrodes by colloidal templating methods

등록일
2009년 8월 14일 13시 50분 34초
접수번호
0992
발표코드
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발표시간
목 15시 : 50분
발표형식
심포지엄
발표분야
공업화학 - Dye-Sensitized and Organic Solar Cells
저자 및
공동저자
이현정
한국과학기술연구원 고분자하이브리드센타, Korea

Dye-sensitized solar cells based on highly porous nanocrystalline TiO2 films have drawn much attention due to their high conversion efficiency and low production cost. TiO2 nanocrystalline particles have been investigated extensively as a key material. In this study, we present a new strategy to fabricate macroporous photoelectrodes using polystyrene(PS) colloidal templating methods both at high temperature (>400oC) and at low temperature (150oC>). Polymeric colloidal structures could be removed by thermal sintering or chemical treatment. This mesoporous structure provides the large empty space leading to the easy infiltration of quasi-solid state electrolytes and has additional light harvesting effect. A major advantage of this colloidal array template method is that the pore size and its distribution within TiO2 photoelectrodes are determined by those of latex beads, which can be controlled easily. These materials may have promising potentials for future applications of membrane, sensor and so on as well as solar cells.


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