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Polymer Bulletin
Published in: Polymer Bulletin 9/2016

25-05-2016 | Original Paper

Synthesis and photovoltaic properties of benzimidazole-based copolymer with fluorine atom

Authors: Suhee Song, Taehyo Kim, Dongho Kang, Hongsuk Suh, Myung Ho Hyun, Seong Soo Park, Gun Dae Lee, Jin Young Kim, Youngeup Jin

Published in: Polymer Bulletin | Issue 9/2016

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Abstract

A new accepter unit, 5,6-difluoro-2,2-dimethyl-2H-benzo[d]imidazole, was prepared and utilized for the synthesis of the conjugated polymers containing electron donor–acceptor pair for OPVs. Difluoro-dimethyl-2H-benzoimidazole unit was designed to introduce electron-withdrawing F atom in dimethyl-2H-benzimidazole unit to improve deeper HOMO and higher V OC of the polymer. New semiconducting copolymer with dioctyloxybenzodithiophene, as the electron-rich unit, and difluoro-dimethyl-2H-benzoimidazole, as the electron-deficient unit, was synthesized by Stille polymerization.
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Metadata
Title
Synthesis and photovoltaic properties of benzimidazole-based copolymer with fluorine atom
Authors
Suhee Song
Taehyo Kim
Dongho Kang
Hongsuk Suh
Myung Ho Hyun
Seong Soo Park
Gun Dae Lee
Jin Young Kim
Youngeup Jin
Publication date
25-05-2016
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 9/2016
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-016-1679-2

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