Facile and Cost-Efficient Synthesis of Photovoltaic Polymers via Direct Arylation Coupling  

作　　者：Xiao-Chen Wang Yuan Zhang Jia-Xin Yang Jin-Jun Shao Ming-Feng Wang Yong-Fang Li 

机构地区：[1]School of Materials Science and Engineering,Shaanxi Normal University,Xi'an 710119,China [2]Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM),School of Flexible Electronics(Future Technologies),Nanjing Tech University,Nanjing 211816,China [3]School of Science and Engineering,The Chinese University of Hong Kong,Shenzhen 518172,China [4]Beijing National Laboratory for Molecular Sciences,CAS Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Chinese Journal of Polymer Science》2023年第11期1663-1685,I0004,共24页高分子科学（英文版）

基　　金：the National Natural Science Foundation of China(No.51773046);the Fundamental Research Funds for the Central Universities,the School of Materials Science and Engineering,Shaanxi Normal University;the Project of Key Laboratory of Organic Synthesis of Jiangsu Province,College of Chemistry Chemical Engineering and Materials Science,Soochow University。

摘　　要：As the high calibre candidate of lightweight and flexible solar cells,polymer solar cells(PSCs)have made tremendous progress in recent years.However,the active photovoltaic materials in PSCs are mainly synthesized by metal-mediated coupling reaction requiring harsh reaction conditions,multiple-step synthesis,and cumbersome purification,which is not cost-efficient and may bring toxicity concerns.It is not favorable to the production of photovoltaic polymers and PSC devices on a large scale,and therefore unsuitable for the PSCs industrialization.Direct arylation coupling reaction via aromatic C―H bonds activation enables the synthesis of conjugated polymers under mild conditions and simultaneously reduces synthetic steps,difficulty,and toxic reaction byproducts.This review provides an overview of the history of preparing representative photovoltaic polymers utilized in PSCs through direct arylation reactions and discusses the activity and selectivity of C―H bonds in typical building blocks under different reaction conditions.Especially,the impact of direct arylation condition on defect formation and photovoltaic performance of the photovoltaic polymers is addressed and compared with conventional Stille coupling methods.

关 键 词：Photovoltaic polymers Direct arylation coupling C―H bonds activation Polymer solar cells(PSCs) Organic solar cells(OSCs) Low-cost 

分 类 号：TQ317[化学工程—高聚物工业] TM914.4[电气工程—电力电子与电力传动]