Published in
Royal Society of Chemistry, Chemical Communications, 6(50), p. 679-681, 2014
DOI: 10.1039/c3cc47868h
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Wide band gap diketopyrrolopyrrole-based conjugated polymers incorporating biphenyl units applied in polymer solar cells
Journal article published in 2014 by
Weiwei Li 
,
Alice Furlan,
Wsc Christian Roelofs,
W. S. Christian Roelofs,
Gijs W. P. van Pruissen,
Kh Koen Hendriks,
Koen H. Hendriks,
Gwp Gijs van Pruissen,
Mm Martijn Wienk,
Raj René Janssen,
René A. J. Janssen
,
Alice Furlan,
Wsc Christian Roelofs,
W. S. Christian Roelofs,
Gijs W. P. van Pruissen,
Kh Koen Hendriks,
Koen H. Hendriks,
Gwp Gijs van Pruissen,
Mm Martijn Wienk,
Raj René Janssen,
René A. J. Janssen
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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.