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Chem Commun (Camb). 2013 Dec 4;49(93):10950-2. doi: 10.1039/c3cc46557h.

High open circuit voltage organic photovoltaic cells fabricated using 9,9'-bifluorenylidene as a non-fullerene type electron acceptor.

Author information

  • 1Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Republic of Korea. dohoonhwang@pusan.ac.kr.

Abstract

We have found that 9,9'BF can be used as an electron acceptor for P3HT-based OPVs while similar devices using 4,4'BP do not show any photovoltaic effect. This can be related to the respective aromaticity and antiaromaticity of the reduced forms of 9,9'BF or 4,4'BP. The OPV device fabricated using P3HT and 9,9'BF exhibited a PCE of 2.28% with a V(oc) of 1.07 V, a J(sc) of 5.04 mA cm(-2), and a FF of 0.42.

PMID:
24129602
[PubMed]
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