Effects of subtle change in side chains on the photovoltaic performance of small molecular donors for solar cells

作     者：Xiang Gao Kuibao Yu Yanjiao Zhao Tao Zhang Jing Wen Zifeng Liu Zhihao Liu Guofeng Ye Jianhong Gao Ziyi Ge Zhitian Liu Xiang Gao;Kuibao Yu;Yanjiao Zhao;Tao Zhang;Jing Wen;Zifeng Liu;Zhihao Liu;Guofeng Ye;Jianhong Gao;Ziyi Ge;Zhitian Liu

作者机构：Hubei Engineering Technology Research Center of Optoelectronic and New Energy MaterialsHubei Key Laboratory of Plasma Chemistry and Advanced MaterialsSchool of Materials Science and EngineeringWuhan Institute of TechnologyWuhan 430205China Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2022年第33卷第10期

页      面：4659-4663页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Natural Science Foundation of China(NSFC,Nos.51973169,51703172) the Open Project Program of Wuhan National Laboratory for Optoelectronics(No.2020WNLOKF015) the Science Foundation of Wuhan Institute of Technology(No.K202025) 

主　　题：Organic solar cells Small molecular donor materials Chlorination Miscibility Photovoltaic performance 

摘      要：Small-molecule organic solar cells(SMOSCs)have attracted considerable attention owing to the merits of small molecules,such as easy purification,well-defined chemical *** achieve high-performance SMOSCs,the rational design of well-matched donor and acceptor materials is extremely *** this work,two new small molecular donor materials with subtle change in the conjugated side thiophene rings are *** subtle change significantly affects the photovoltaic performance of molecular *** with chlorinated molecule MDJ-Cl,the non-chlorinated analogue MDJ exhibits decreased miscibility with the non-fullerene acceptor Y6,can more efficiently quench the excitons of *** a result,a improved PCE of 11.16% is obtained for MDJ:Y6 based *** results highlight the importance of fine-tuning the molecular structure to achieve high-performance SMOSCs.