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Title
A Facile Method to Enhance Photovoltaic Performance of Benzodithiophene-Isoindigo Polymers by Inserting Bithiophene Spacer
Article in journal
Authors
Zaifei Ma, Dongfeng Dang, Zheng Tang, Desta Gedefaw, Jonas Bergqvist, Weiguo Zhu, Wendimagegn Mammo, Mats R. Andersson, Olle Inganäs, Fengling Zhang, Ergang Wang
Publication Year
2014
Source
ADVANCED ENERGY MATERIALS, 2014, (4)6,
Link to Source (DOI)
10.1002/aenm.201301455
Abstract
<p><strong>A series of conjugated polymers containing benzodithiophene as donor and isoindigo as acceptor</strong> with no, one, two and three thiophene spacer groups is synthesized and characterized. The polymer with bithiophene as a spacer has a superior efficiency of 7.31% in solar cells. This demonstrates an important design strategy to produce polymers for high-performance solar cells by inserting thiophene spacer groups.</p>