Planarized Polymer Acceptor Featuring High Electron Mobility for Efficient All-Polymer Solar Cells

作     者：Feng Liu Ri Sun Cheng-Yu Wang Liang Zhou Wen-Li Su Qi-Hui Yue Shuai Sun Wu-Yue Liu Hai-Jun Fan Wen-Kai Zhang Yun-Long Guo Li-Heng Feng Xiao-Zhang Zhu Feng Liu;Ri Sun;Cheng-Yu Wang;Liang Zhou;Wen-Li Su;Qi-Hui Yue;Shuai Sun;Wu-Yue Liu;Hai-Jun Fan;Wen-Kai Zhang;Yun-Long Guo;Li-Heng Feng;Xiao-Zhang Zhu

作者机构：School of Chemistry and Chemical EngineeringShanxi UniversityTaiyuan030006China Beijing National Laboratory for Molecular SciencesCAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing100190China Department of Physics and Applied Optics Beijing Area Major LaboratoryCenter for Advanced Quantum StudiesBeijing Normal UniversityBeijing100875China University of Chinese Academy of SciencesBeijing100049China 

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：968-978,I0011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：This work was financially supported by the National Natural Science Foundation of China(Nos.21905163,91833304,21805289,91833306,21922511,61890940 and U2032112) the National Key R&D Program of China(Nos.2019YFA0705900 and 2017YFA0204701) F.L.is grateful for support from the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi(No.2019-07) Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(No.2019L0009) the Youth Science Foundation of Shanxi Province(No.201901D211149) 

主　　题：All-polymer solar cells Polymerized small molecular acceptors Planarization Electron mobility Thick film organic solar cells 

摘      要：Significant progress has been achieved for all-polymer solar cells(APSCs)in the last few years by the use of polymerized small molecular acceptors(PSMAs).Developing high electron mobility polymer acceptors has been considered a feasible solution to further improve the photovoltaic performance of APSCs and fabricate thick film devices,which contributed to roll-to-roll printing *** this work,we designed and synthesized PSV,an A-DA’D-A small molecule acceptor-based PSMA with the vinyl group as a bridged linkage to reduce the steric hindrance between the 1,1-dicyanomethylene-3-indanone(IC)terminal *** comparison with the C-C bond linked polymer acceptor PS,PSV exhibits an almost planar conjugated framework and well-ordered molecular stacking in the thin ***,PSV exhibits superior n-type semiconducting properties with high electron mobility of up to 0.54 cm^(2)·V^(−1)·s^(−1),which is the highest value among reported *** utilizing PM6 as a polymer donor,PSV-based blend forms a favorable nanomorphology and exhibits high and well-balanced hole/electron mobilities,which is beneficial for exciton separation and charge ***,APSCs based on PM6:PSV achieved high power conversion efficiencies of up to 15.73%,with a simultaneously realized high Voc of 0.923 V,Jsc of 23.2 mA·cm^(-2),and FF of *** superior features enable PSV with excellent thickness-insensitive properties and over 13%PCE was obtained at 300 *** the best of our knowledge,the high PCE of 15.73%with excellent electron mobility of 0.54 cm^(2)·V^(−1)·s^(−1)is the highest values reported for *** results point to the great significance of developing polymer acceptors with a high electron mobility for boosting the performance of APSCs.