A carbon-oxygen-bridged ladder-type building block for efficient donor and acceptor materials used in organic solar cells

查看全文 作　　者：Zuo [1]Xiao;Fan [1,2]Liu;Xinjian [1]Geng;Jianqi [1]Zhang;Shizhe [1]Wang;Yujun [2]Xie;Zhen [2]Li;Huai [3]Yang;Yongbo [4]Yuan;Liming [1]Ding

机构地区：[1]Center for Excellence in Nanoscience (CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS),National Center for Nanoscience and Technology;[2]Department of Chemistry,Wuhan University;[3]College of Engineering,Peking University;[4]School of Physics & Electronics,Central South University

出　　处：《Science Bulletin》索引2017年第62卷第19期,共6页

基　　金：supported by the National Natural Science Foundation of China (U1401244, 21374025, 21372053, 21572041, and 51503050);the National Natural Science Foundation of China (51673218) for financial support;the National Key Research and Development Program of China (2017YFA0206600);the State Key Laboratory of Luminescent Materials and Devices (2016-skllmd-05);the Youth Association for Promoting Innovation (CAS) 摘　　要：A carbon-oxygen-bridged ladder-type donor unit(CO5) was invented and prepared via an ‘‘intramolecular demethanolization cyclization' approach. Its single crystal structure indicates enhanced planarity compared with the carbon-bridged analogue indacenodithiophene(IDT). Owing to the stronger electron-donating capability of CO5 than IDT, CO5-based donor and acceptor materials show narrower bandgaps. A donor-acceptor(D-A) copolymer donor(PCO5TPD) and an A-D-A nonfullerene acceptor(CO5IC) demonstrated higher performance than IDT-based counterparts, PIDTTPD and IDTIC, respectively. The better performance of CO5-based materials results from their stronger light-harvesting capability and higher charge-carrier mobilities. 关键词：受体材料有机太阳能电池氧桥结构块梯形碳施主载流子迁移率

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A carbon-oxygen-bridged ladder-type building block for efficient donor and acceptor materials used in organic solar cells

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