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Issue 47, 2011
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Electric field dependent photocurrent generation in a thin-film organic photovoltaic device with a [70]fullerene–benzodifuranone dyad

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Abstract

A [70]fullerene–benzodifuranone acceptor dyad synthesized by a Ag+-mediated coupling reaction was used to construct a thin-film organic solar cell. The fullerene and the benzodifuranone dye in the dyad have close-lying LUMO levels in the range of 3.7–3.9 eV, so that energy transfer from the dye to the fullerene can take place. A p–n heterojunction photovoltaic device consisting of a tetrabenzoporphyrin and a [70]fullerene–benzodifuranone dyad showed a weak but discernible contribution from light absorption of the dyad to the photocurrent under both a positive and a negative effective bias. These results indicate that the benzodifuranone moiety attached to the acceptor contributes to light-harvesting by energy transfer.

Graphical abstract: Electric field dependent photocurrent generation in a thin-film organic photovoltaic device with a [70]fullerene–benzodifuranone dyad

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Publication details

The article was received on 11 Sep 2011, accepted on 23 Sep 2011 and first published on 21 Oct 2011


Article type: Paper
DOI: 10.1039/C1CP22886B
Citation: Phys. Chem. Chem. Phys., 2011,13, 21045-21049
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    Electric field dependent photocurrent generation in a thin-film organic photovoltaic device with a [70]fullerene–benzodifuranone dyad

    P. A. Ulmann, H. Tanaka, Y. Matsuo, Z. Xiao, I. Soga and E. Nakamura, Phys. Chem. Chem. Phys., 2011, 13, 21045
    DOI: 10.1039/C1CP22886B

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