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 PC71BM 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.
Original language | English |
---|---|
Pages (from-to) | 14244-14247 |
Number of pages | 4 |
Journal | Journal of The American Chemical Society |
Volume | 133 |
Issue number | 36 |
DOIs | |
Publication status | Published - 14 Sep 2011 |