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J Am Chem Soc. 2011 Sep 14;133(36):14244-7. doi: 10.1021/ja206610u. Epub 2011 Aug 22.

An easily accessible isoindigo-based polymer for high-performance polymer solar cells.

Author information

1
Department of Chemical and Biological Engineering/Polymer Technology, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. ergang@chalmers.se

Abstract

A new, low-band-gap alternating copolymer consisting of terthiophene and isoindigo has been designed and synthesized. Solar cells based on this polymer and PC(71)BM show a power conversion efficiency of 6.3%, which is a record for polymer solar cells based on a polymer with an optical band gap below 1.5 eV. This work demonstrates the great potential of isoindigo moieties as electron-deficient units for building donor-acceptor-type polymers for high-performance polymer solar cells.

PMID:
21848297
DOI:
10.1021/ja206610u
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