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Inverted Polymer Solar Cells with Reduced Interface Recombination

Authors

  • Song Chen,

    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • Cephas E. Small,

    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • Chad M. Amb,

    1. The George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, Center of Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • Jegadesan Subbiah,

    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • Tzung-han Lai,

    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • Sai-Wing Tsang,

    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • Jesse R. Manders,

    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
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  • John R. Reynolds,

    Corresponding author
    1. School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Institute of Technology, Altanta, GA, 30332-0400, USA
    • School of Chemistry and Biochemistry, School of Materials Science and Engineering, Center for Organic Photonics and Electronics, Georgia Institute of Technology, Altanta, GA, 30332-0400, USA
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  • Franky So

    Corresponding author
    1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA
    • Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611, USA.
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Abstract

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Interface recombination induced by the defect states in zinc-oxide-nanoparticle-based electron extraction layer is reported as a significant loss-mechanism of photocurrent collection. By choosing appropriate UV–ozone treatment conditions on the zinc oxide layer, inverted polymer solar cells show reduced interface recombination and thus improved power conversion efficiencies of up to 8.1%.

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