文献类型：期刊文献

英文题名：Near-infrared absorbing isoindigo sensitizers: Synthesis and performance for dye-sensitized solar cells

作者：Wang, Dan;Ying, Weijiang;Zhang, Xiaoyu;Hu, Yue;Wu, Wenjun;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：2015

卷号：112

起止页码：327

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20143518099010);WOS:【SCI-EXPANDED(收录号:WOS:000343687300044)】；

基金：This work was supported by NSFC/China (2116110444, 21172073, 91233207 and 21372082) and the National Basic Research 973 Program (2013CB733700).

语种：英文

外文关键词：Isoindigo; Near-infrared absorption; Synthesis; Dye-sensitized solar cells; Sensitizers; Indoline

摘要：A series of isoindigo-based metal-free organic sensitizers have been synthesized and used in dye-sensitized solar cells (DSSCs). Measurement data indicated that the fine-tuning of the donor or linker moiety could conveniently adjust the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels. All DSSCs sensitized by three new dyes displayed an efficient panchromatic spectra response with the improved light-harvesting capability in near-infrared region, in which a highest photovoltaic conversion efficiency of 5.56% was obtained by the DSSCs of benzene-bridge isoindigo-based sensitizer, with a short-circuit photocurrent density (J(sc)) of 13.16 mA/cm(2), an open-circuit photovoltage (V-oc) of 582 mV, and a fill factor (ff) of 0.73. (C) 2014 Elsevier Ltd. All rights reserved.