摘要
Background and Originality Content Bulk heterojunction(BHJ)organic solar cells(OSCs)consisting of electron donor and electron acceptor as light absorbers have attracted broad attention due to their advantages of flexibility,light weight and low cost.[1-12] Over the last thirty years,great efforts have been made to promote the rapid progress of OSCs,leading to over 17%power conversion efficiencies(PCEs).[13,14]The innovative material design contributes a lot to achieve high PCEs of OSCs.
基金
J.H.would like to thank the support from the National Natural Science Foundation(NSFC)of China(Nos.91633301,51673201,and 21835006)
the Chinese Academy of Science(No.XDB12030200)
the Innovation Project supported by Beijing National Laboratory for Molecular Sciences(No.BNLMS-CXXM-201903)
H.Y.thanks to the support from the NSFC of China(No.21805287)
the Youth Innovation Promotion Association CAS(No.2018043).
