Effects of inserting keto-functionalized side-chains instead of imide-functionalized side-chain on the pyrrole backbone of 2,5-bis(2-thienyl)pyrrole-based polymers for organic solar cells

Vellaiappillai Tamilavan,Insoo Shin,Rajalingam Agneeswari,Yanliang Liu,Yun Kyung Jung,Bo Ram Lee,Youngeup Jin,Jung Hyun Jeong,Myung Ho Hyun,Sung Heum Park

Journal of Photochemistry and Photobiology A: Chemistry（2019）

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摘要

•Keto-functionalized 2,5-bis(2-thienyl)pyrrole (TPTK)-based new polymers prepared.•The opto-electrical and photovoltaic properties of new polymers elaborately studied.•The properties are compared with those of imide-functionalized (TPTI) polymers.•TPTK-polymers showed higher band-gap and lower mobility than TPTI-polymers.•TPTK-polymers showed less PCE than TPTI-polymers.

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关键词

Pyrrole-based polymers,Property modulation of the polymers,π–Conjugate effects on the properties of polymers

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