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Quantifying Bimolecular Recombination in Organic Solar Cells in Steady State

Authors

  • Gert-Jan A. H. Wetzelaer,

    1. Molecular Electronics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
    2. Dutch Polymer Institute, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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  • Niels J. Van der Kaap,

    1. Molecular Electronics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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  • L. Jan Anton Koster,

    1. Molecular Electronics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
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  • Paul W. M. Blom

    Corresponding author
    1. Molecular Electronics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
    2. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
    • Molecular Electronics, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
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Abstract

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A steady-state method to probe bimolecular recombination in organic solar cells is presented. The technique is applicable to thin-film solar cells at any temperature and does not require a separate measurement setup other than conventional solar-cell testing equipment. The key element in our method is the derivation of a simple analytical expression that directly gives access to the recombination strength.

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