Characteristics of triphenylamine-based dyes with multiple acceptors in application of dye-sensitized solar cells

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题名:	Characteristics of triphenylamine-based dyes with multiple acceptors in application of dye-sensitized solar cells
作者:	Yang,CH;Chen,HL;Chuang,YY;Wu,CG;Chen,CP;Liao,SH;Wang,TL
贡献者:	中央大學
关键词:	NANOCRYSTALLINE TIO2 FILMS;ORGANIC-DYES;ELECTRON-TRANSPORT;HIGH-EFFICIENCY;CONVERSION;NANOTUBES;ENERGY;LIGHT
日期:	2009
上传时间:	2010-06-29 19:44:58 (UTC+8)
出版者:	化學研究所
摘要:	We report the synthesis and photophysical/electrochemical properties of triphenylamine (TPA)-based Multiple election acceptor dyes (TPAR1, TPAR2, and TPAR3) as well as their applications in dye-sensitized solar cells (DSSCs). In these dyes, the TPA group and the rhodanine-3-acetic acid play the role of the basic electron donor unit and the electron acceptor. respectively. It was found that introduction of two rhodanine-3-acetic acid groups into the TPA unit (TPAR2) exhibited better photovoltaic performance due to the increase with a red shift and broadening of the absorption spectrum. The monolayer of these TPA-based dyes was adsorbed on the surface of nanocrystalline TiO2 mesoporous electrode with the thickness of similar to 6 mu m, polyethylene oxide (PEO) used as the matrix of gel electrolyte, and 4-nm thick Pt used as a counter-electrode. Photovoltaic device can be realized in a single quasi-solid-state DSSC. TPAR2-based gel DSSC had an open circuit voltage and short circuit current density of about 541 and 10.7 mA cm(-2), respectively, at 1-sun. (C) 2008 Elsevier B.V. All rights reserved.
關聯:	JOURNAL OF POWER SOURCES
显示于类别:	[化學研究所] 期刊論文

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