文献类型：期刊文献

英文题名：Co-sensitization with near-IR absorbing cyanine dye to improve photoelectric conversion of dye-sensitized solar cells

作者：Wu, Wenjun;Meng, Fanshun;Li, Jing;Teng, Xin;Hua, Jianli[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2009

卷号：159

期号：11

起止页码：1028

外文期刊名：SYNTHETIC METALS

收录：;EI(收录号：20092212103591);WOS:【SCI-EXPANDED(收录号:WOS:000267632500008)】；

基金：This work was supported by NSFC/China (20772031, 60508011), National Basic Research 973 Program (2006CB806200) and Scientific Committee of Shanghai.

语种：英文

外文关键词：Cyanine dye; Co-sensitization; Dye-sensitized solar cell; Photovoltaic properties

摘要：Two carboxylated cyanine dyes, 3-butyl-2-[3-(1-butyl-5-carboxy-1,3-dihydro-3,3-dimethyl-2H-indol-2-ylidene)-1-propen-1-yl]-1,1-dimethyl-7-[1-[2-[6-(4-morpholinyl)-1,3-dioxo-1H-benz[de]isoquinolin- 2(3H)-yl]ethyl]-1 H-1,2,3-triazol-4-yl]-1H-Benz[e]indolium iodide (A), 2-[5-(1-butyl-5-carboxy-1,3-dihydro-3,3-dimethyl-2H-indol-2-ylidene)-1,3-pentadienyl]-3-ethyl-1,1-dimethyl-1H-Benz[e]indolium iodide (B), have been prepared and their photophysical and electrochemical properties have been investigated. A, B and their mixtures (AB) were used as sensitizers in nanocrystalline TiO2 solar cells to improve photoelectric conversion efficiency. It was found that the solar cell sensitized with A3B1 (molar ratio: A:B=3:1) generated a high power conversion efficiency of 3.0% under AM 1.5G illumination (100 mW cm(-2)), indicating that co-sensitization is a promising method to improve the photoelectrical properties of dye-sensitized solar cells. (C) 2009 Elsevier B.V. All rights reserved.