5H-dithieno[3,2-b:20,30-d]pyran-5-one unit yields efficient wide-bandgap polymer donors  

作　　者：Jinfeng Liu Ling Liu Chuantian Zuo Zuo Xiao Yingping Zou Zhiwen Jin Liming Ding 

机构地区：[1]College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China [2]Center for Excellence in Nanoscience(CAS),Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS),National Center for Nanoscience and Technology,Beijing 100190,China [3]CSIRO Manufacturing,Bag 10,Clayton South,Victoria 3169,Australia [4]School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,China

出　　处：《Science Bulletin》2019年第22期1655-1657,共3页科学通报（英文版）

基　　金：the National Key Research and Development Program of China (2017YFA0206600);the National Natural Science Foundation of China (51773045, 21572041, 21772030, 51922032 and 21875286);the Youth Association for Promoting Innovation (CAS) for financial support;the Science Fund for Distinguished Young Scholars of Hunan Province (2017JJ1029)

摘　　要：Recently,great progress has been made in organic solar cells due to the emergence of high-performance nonfullerene acceptors[1-6].Over 16%and 17%power conversion efficiencies(PCEs)were achieved for nonfullerene-acceptor-based single-junction and tandem cells,respectively[7,8].Owing to complementary light absorption,wide-bandgap donor-acceptor(D-A)copolymers are ideal electron-donating partners for nonfullerene acceptors.However,efficient D-A copolymer donors are still limited.

关 键 词：ACCEPTOR DONOR complementary 

分 类 号：O63[理学—高分子化学]