Bram P. Karsten, Johan C. Bijleveld and René A. J. Janssen Diketopyrrolopyrroles as Acceptor Materials in Organic Photovoltaics Macromolecular Rapid Communications 31
Diketopyrrolopyrroles (DPPs) are explored in the search of new electron acceptor materials for organic solar cells. DPPs have already been successfully used as donor materials, but also have low reduction potentials and significant electron mobilities. A series of small DPP molecules is presented and the compounds are tested as electron acceptors, in combination with polythiophene as a donor, in organic solar cells. The best device shows an efficiency of 0.31%.
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