A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_(loss)

作     者：Hongbin Chen Xiangjian Cao Xiaoyun Xu Chenxi Li Xiangjian Wan Zhaoyang Yao Yongsheng Chen Hongbin Chen;Xiangjian Cao;Xiaoyun Xu;Chenxi Li;Xiangjian Wan;Zhaoyang Yao;Yongsheng Chen

作者机构：State Key Laboratory and Institute of Elemento-Organic ChemistryThe Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center(RECAST)College of ChemistryNankai UniversityTianjin300071China State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCenter for Advanced Low-dimension MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2022年第40卷第8期

页      面：921-927,I0008页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 21935007, 52025033 and 51873089) Ministry of Science and Technology (No. 2019YFA0705900) of China,Tianjin city (No. 20JCZDJC00740) 111 Project (No. B12015) 

主　　题：Two-dimensional A-D-A acceptor Reorganization energy Energy loss(E_(loss)) Organic photovoltaics 

摘      要：A novel two-dimensional A-D-A acceptor named as CH8 with four electron-withdrawing end units has been successfully designed and *** enlarged conjugation in two directions renders CH8 exhibit an extremely low electron reorganization energy of 98 meV,which makes CH8 a potential candidate for outstanding organic semiconductor *** blended with PM6,a considerate power conversion efficiency of 9.37%along with a high open-circuit voltage(V_(oc))0.889 V and low energy loss(E_(loss))below 0.6 eV is *** results indicate that the two-dimensional A-D-A molecule with four electron-withdrawing end units is an effective molecular design strategy to achieve lower voltage loss and also possible high performance for organic photovoltaics if ideal morphology could be achieved.