標題: Design and characterization of porphyrin sensitizers with a push-pull framework for highly efficient dye-sensitized solar cells
作者: Wu, Sung-Lin
Lu, Hsueh-Pei
Yu, Han-Ting
Chuang, Shu-Han
Chiu, Chien-Lan
Lee, Cheng-Wei
Diau, Eric Wei-Guang
Yeh, Chen-Yu
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 2010
摘要: Novel porphyrin dyes YD14-YD17 with a push-pull framework were synthesized for dye-sensitized solar cells (DSSC); their spectral, electrochemical and photovoltaic properties were investigated. The absorption bands of these porphyrin dyes are broadened and red-shifted upon introduction of electron-donating groups (EDG) to the meso-positions via extension of p-conjugation. Electrochemical tests show that the first oxidation for these porphyrins occurs at a potential greater than that of the I(-)/I(3)(-) redox couple, and attachment of EDGs to the periphery of the porphyrin facilitates electron abstraction. The photovoltaic measurements show that YD14 and YD17 have a power conversion efficiency of similar to 7%. Introduction of EDGs to various meso-positions is demonstrated to be achievable, and porphyrin dyes with appropriate EDGs are promising candidates for highly efficient DSSCs.
URI: http://hdl.handle.net/11536/6122
http://dx.doi.org/10.1039/c003872p
ISSN: 1754-5692
DOI: 10.1039/c003872p
期刊: ENERGY & ENVIRONMENTAL SCIENCE
Volume: 3
Issue: 7
起始頁: 949
結束頁: 955
顯示於類別:期刊論文


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