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Quantification of Geminate and Non-Geminate Recombination Losses within a Solution-Processed Small-Molecule Bulk Heterojunction Solar Cell

Authors

  • Dan Credgington,

    Corresponding author
    1. Centre for Plastic Electronics, Department of Chemistry, Imperial College London, London, SW7 2AZ, UK
    • Centre for Plastic Electronics, Department of Chemistry, Imperial College London, London, SW7 2AZ, UK.===

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  • Fiona C. Jamieson,

    1. Centre for Plastic Electronics, Department of Chemistry, Imperial College London, London, SW7 2AZ, UK
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  • Bright Walker,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106-9510, USA
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  • Thuc-Quyen Nguyen,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106-9510, USA
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  • James R. Durrant

    Corresponding author
    1. Centre for Plastic Electronics, Department of Chemistry, Imperial College London, London, SW7 2AZ, UK
    • Centre for Plastic Electronics, Department of Chemistry, Imperial College London, London, SW7 2AZ, UK.===

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Abstract

Direct measurements of the field-dependent efficiency with which electron-hole pairs are dissociated (1) can be combined with direct measurement of the carrier-density dependent rate at which they subsequently recombine (2) to determine the proportion of carriers which may be usefully extracted (3) for a class of solution-processed organic small-molecule bulk-heterojunction solar cells.

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