Abstract
Incorporating biphenyls as co-monomers in electron-deficient diketopyrrolopyrrole (DPP) conjugated polymers enables widening the optical band gap to 1.70 eV. Power conversion efficiencies of 3.7-5.7% and high open-circuit voltages of 0.80-0.93 V are obtained in solar cells based on these wide band gap DPP polymers. © 2014 The Royal Society of Chemistry
Original language | English |
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Pages (from-to) | 679-681 |
Number of pages | 3 |
Journal | Chemical Communications, ChemComm |
Volume | 50 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2014 |