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 |