文献类型：期刊文献

英文题名：Low bandgap polymers synthesized by FeCol₃ oxidative polymerization

作者：Cai, Tianqi[1,4];Zhou, Yi[2,3];Wang, Ergang[1];Hellstrom, Stefan[1];Zhang, Fengling[2,3];Xu, Shiai[4];Inganas, Olle[2,3];Andersson, Mats R.[1,2,3]

机构：[1]Chalmers Univ Technol, SE-41296 Gothenburg, Sweden;[2]Linkoping Univ, IFM, SE-58183 Linkoping, Sweden;[3]Linkoping Univ, Ctr Organ Elect, SE-58183 Linkoping, Sweden;[4]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：94

期号：7

起止页码：1275

外文期刊名：SOLAR ENERGY MATERIALS AND SOLAR CELLS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000278376500015)】；

基金：We thank the Swedish Foundation for Strategic Research (SSF) for financial support through the Centre of Organic Electronics (COE).

语种：英文

外文关键词：Polymer solar cells; Bulk heterojunction; FeCl3 oxidative polymerization; Low bandgap polymers; Benzo[c][1,2,5]thiadiazole

摘要：Four low bandgap polymers, combining an alkyl thiophene donor with benzo[c][1,2,5]thiadiazole, 2,3-diphenylquinoxaline, 2,3-diphenylthieno[3,4-b]pyrazine and 6,7-diphenyl-[1,2,5]thiadiazolo[3,4-g] quinoxaline acceptors in a donor-acceptor-donor architecture, were synthesized via FeCl3 oxidative polymerization. The molecular weights of the polymers were improved by introducing o-dichlor-obenzene (ODCB) as the reaction solvent instead of the commonly used solvent, chloroform. The photophysical, electrochemical and photovoltaic properties of the resulting polymers were investigated and compared. The optical bandgaps of the polymers vary between 1.0 and 1.9 eV, which is promising for solar cells. The devices spin-coated from an ODCB solution of P1DB:[70]PCBM showed a power conversion efficiency of 1.08% with an open-circuit voltage of 0.91 V and a short-circuit current density of 3.36 mA cm(-2) under irradiation from an AM1.5G solar simulator (100 mW cm(-2)). (C) 2010 Elsevier B.V. All rights reserved.