文献类型：期刊文献

英文题名：New diketo-pyrrolo-pyrrole (DPP) sensitizer containing a furan moiety for efficient and stable dye-sensitized solar cells

作者：Qu, Sanyin;Wang, Bing;Guo, Fuling;Li, Jing;Wu, Wenjun[1];Kong, Cong;Long, Yitao;Hua, Jianli

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：2012

卷号：92

期号：3

起止页码：1384

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20114614514114);WOS:【SCI-EXPANDED(收录号:WOS:000298024300068)】；

基金：This work was supported by NSFC/China (21172073 and 61006048), the Fundamental Research Funds for the Central Universities (WJ0913001 and WJ1014025), Ph. D. Programs Foundation of Ministry of Education of China (20090074110004) and Scientific Committee of Shanghai (10520709700).

语种：英文

外文关键词：Diketo-pyrrolo-pyrrole; Metal-free; Dye-sensitized solar cell; Furan; Ionic liquid electrolyte; Stability

摘要：A new metal-free organic sensitizer containing a furan moiety as the pi-spacer based on the diketo-pyrrolo-pyrrole unit was synthesized through simple synthetic routes and with low cost for the application of dye-sensitized solar cells. Two corresponding dyes with benzene and thiophene spacers were also synthesized for the purpose of comparison. On the basis of optimized DSSC test conditions, the sensitizer containing the furan shows prominent solar energy conversion efficiency (eta) of 5.65% (J(SC) = 15.96 mA cm(-2), V-OC = 541 mV, ff = 0.65) under simulated full sunlight irradiation. The dyes were also tested in a solvent-free ionic liquid electrolyte devices and the stability of devices was performed over 2000 h at full sunlight. The sensitizer containing the furan moiety exhibited good stability and better photovoltaic performance of up to 4.41% power conversion efficiency. (C) 2011 Elsevier Ltd. All rights reserved.