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Alexander Sharenko, Christopher M. Proctor, Thomas S. van der Poll, Zachary B. Henson, Thuc-Quyen Nguyen and Guillermo C. Bazan A High-Performing Solution-Processed Small Molecule:Perylene Diimide Bulk Heterojunction Solar Cell Advanced Materials 25

Article first published online: 21 JUN 2013 | DOI: 10.1002/adma.201301167

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By combining the molecular donor p-DTS(FBTTh2)2 with a readily produced perylene diimide acceptor we are able to achieve a power conversion efficiency of 3.0%, making this one of the most efficient non-fullerene organic solar cells to date. The reduced power conversion efficiency of the present system compared to the use of phenyl-C71-butyric acid methyl ester as an electron acceptor is shown to primarily be related to a significant reduction in the internal quantum efficiency. These results indicate the potential of small-molecule:non-fullerene bulk-heterojunction organic photovoltaics.

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