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학술발표회초록보기

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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 “Push-Pull” organic sensitizers for Dye-Sensitized Solar Cells

등록일
2012년 2월 21일 11시 23분 31초
접수번호
1306
발표코드
ELEC.P-1291 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
전기화학
저자 및
공동저자
진준수, 장성연1
한국과학기술연합대학원 나노재료공학, Korea
1국민대학교 생명나노화학과, Korea
Dye-sensitized solar cells (DSSCs) have been investigated extensively since Gratzel and coworkers reported a high solar energy-to-electricity conversion efficiency of >10%. Ruthenium complex dyes have actively been used to develop high efficiency DSSCs. However, metal free organic sensitizers have recently been received much attention due to their low-cost and high molar extinction coefficient while they do not need to use the precious metals that are in limited source. Furthermore, the organic dyes are easy to design to absorb selective solar spectral regions, and to synthesize with simple purification. In this study, push-pull structured π-conjugated organic sensitizers which contain triphenylamine moieties as a electron donor and cyanoacetic acid moiety as a electron accepter are synthesized to prepare high efficiency DSSCs. Hierarchically structured TiO2 (HS-TiO2) that are known to have enhanced electron diffusion coefficient and long lifetime are used as a photoelectrodes of DSSCs. The resulting DSSCs display the power conversion efficiency (PCE) of 6.38% under standard AM 1.5G sunlight (100mW/cm2) with short circuit photocurrent density (JSC) of 11.73 mA/cm2, open circuit voltage (VOC) of 0.82 V and fill factor of 66%.

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