

FOLLOWUS
a.School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
b.Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing 211816, China
c.School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
d.Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
wangxc@snnu.edu.cn (X.C.W.)
wangmingfeng@cuhk.edu.cn (M.F.W.)
Received:16 March 2023,
Revised:2023-3-31,
Accepted:07 April 2023,
Online First:15 May 2023,
Published:01 November 2023
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Wang, X. C.; Zhang, Y.; Yang, J. X.; Shao, J. J.; Wang, M. F.; Li, Y. F. Facile and cost-efficient synthesis of photovoltaic polymers via direct arylation coupling. Chinese J. Polym. Sci. 2023, 41, 1663–1685
Xiao-Chen Wang, Yuan Zhang, Jia-Xin Yang, et al. Facile and Cost-Efficient Synthesis of Photovoltaic Polymers
Wang, X. C.; Zhang, Y.; Yang, J. X.; Shao, J. J.; Wang, M. F.; Li, Y. F. Facile and cost-efficient synthesis of photovoltaic polymers via direct arylation coupling. Chinese J. Polym. Sci. 2023, 41, 1663–1685 DOI: 10.1007/s10118-023-2990-7.
Xiao-Chen Wang, Yuan Zhang, Jia-Xin Yang, et al. Facile and Cost-Efficient Synthesis of Photovoltaic Polymers
This review provides an overview of the history of preparing representative photovoltaic polymers utilized in polymer solar cells through direct arylation reactions and discusses the activity and selectivity of C−H bonds in typical building blocks under different reaction conditions.
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.
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