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Issue 14, 2015
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Solution-processed boron subphthalocyanine derivatives as acceptors for organic bulk-heterojunction solar cells

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Abstract

We report the fabrication of solution-processed bulk heterojunction devices from subphthalocyanine (SubPc) units as the acceptor component and conventional polymeric donor materials such as MEH-PPV, P3HT and PTB7. The high solubility of the SubPc derivatives facilitated the formation of efficient donor/acceptor networks and provided power conversion efficiencies of 0.4% with MEH-PPV, 1.1% with P3HT and 3.5% with PTB7. A clear contribution of photon harvesting by the acceptor was identified from the external quantum efficiency spectra. Analysis of the current–voltage characteristics and photoluminescence quenching revealed trap-assisted and geminate recombination as a loss mechanism. Our results show that solution-processable SubPcs are a promising alternative to fullerenes for polymer solar cells.

Graphical abstract: Solution-processed boron subphthalocyanine derivatives as acceptors for organic bulk-heterojunction solar cells

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Publication details

The article was received on 29 Jan 2015, accepted on 21 Feb 2015 and first published on 05 Mar 2015


Article type: Paper
DOI: 10.1039/C5TA00715A
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J. Mater. Chem. A, 2015,3, 7345-7352
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    Solution-processed boron subphthalocyanine derivatives as acceptors for organic bulk-heterojunction solar cells

    B. Ebenhoch, N. B. A. Prasetya, V. M. Rotello, G. Cooke and I. D. W. Samuel, J. Mater. Chem. A, 2015, 3, 7345
    DOI: 10.1039/C5TA00715A

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