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

Roles of Electrolytes for Dye-Sensitized Solar Cells

등록일
2009년 9월 3일 11시 35분 57초
접수번호
1609
발표코드
목6D2심 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 14시 : 30분
발표형식
심포지엄
발표분야
공업화학 - Dye-Sensitized and Organic Solar Cells
저자 및
공동저자
강용수
한양대학교 화학공학과, Korea
A main component of dye-sensitized solar cells (DSCs) is electrolyte that fills the space between dye-adsorbed nanocrystalline photoanode and counter electrode. The electrolyte contains redox couples such as I- and I3- dissolved in a solvent, where electrochemical oxidation and reduction reactions can occur continuously along with diffusion of ionic species. The oxidized dyes after generating electrons from their excited states upon light absorption should be regenerated by reactions with electrons, which are provided by the oxidation reaction of the redox couples at the photoanode side. At the counter electrode, the reduction reaction of I3- occurs. In addition, diffusion of ions such as I- and I3- also occurs, and therefore the ionic conductivity is also important in determining the performance. In this presentation, roles of electrolytes will be introduced, in particular, depending on the state such as the liquid, quasi-solid and solid states.

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