title: An easily accessible isoindigo-based polymer for high-performance polymer solar cells.
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.
authors.affiliation: Department of Chemical and Biological Engineering/Polymer Technology, Chalmers University of Technology, SE-412 96 Göteborg, Sweden. ergang@chalmers.se
authors.forename: Ergang
authors.initials: E
authors.lastname: Wang
authors.forename: Zaifei
authors.initials: Z
authors.lastname: Ma
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.forename: Koen
authors.initials: K
authors.lastname: Vandewal
authors.forename: Patrik
authors.initials: P
authors.lastname: Henriksson
authors.forename: Olle
authors.initials: O
authors.lastname: Inganäs
authors.forename: Fengling
authors.initials: F
authors.lastname: Zhang
authors.forename: Mats R
authors.initials: MR
authors.lastname: Andersson