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 |
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| 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 Sept 2011 |