A high-performing solution-processed small molecule:perylene diimide bulk heterojunction solar cell.

Sharenko, Alexander; Proctor, Christopher M; van der Poll, Thomas S; Henson, Zachary B; Nguyen, Thuc-Quyen; Bazan, Guillermo C · Adv Mater · 2013

basic_science · Level V

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Abstract

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.