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  • 09월 12일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제110회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Development of Highly Efficient Porphyrin Dyes for Dye-Sensitized Solar Cells

2012년 9월 6일 14시 41분 16초
ELEC.P-1468 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (수요일) 16:00~19:00
저자 및
인천대학교 화학과, Korea
In view of the limited availability of fossil fuels and the disastrous environmental issues related with their combustion, it is imperative to develop renewable energy resources for the increasing global energy demand. The dye-sensitized solar cell (DSSCs) has attracted considerable attention as a promising technology for low-cost and high-efficiency photovoltaic cells. Significant efforts are now being made on the development of new sensitizer dyes to improve performance of DSSC for the purpose of possible commercialization. As such, it is necessary to elucidate the influence of dye structure on the device function. Porphyrins have been intensively investigated for use in DSSCs for over 12 years. The work was motivated in part by their central role in the photosynthetic reaction center as for light harvesting pigments. The achievement of an 11% solar-to-electric power conversion efficiency under standard condition (AM 1.5G, 100 mWcm-2) by using a judiciously tailored porphyrin dye is reported, which is comparable to that of other organic based dyes developed recently. Porphyrins are particularly appropriate for this application, because they show large absorption coefficients in the visible-near infrared (NIR) region, tunable redox and photophysical properties. In this presentation, we report the synthesis and characterization of a NIR porphyrin dye, focusing on one particular issue; the influence of dye structure upon tunable redox potential and photoinduced charge separation. We address this issue with employing a series of porphyrin dyes, which enable us to study the effect of dye structure on energy level and thus device performance.