Polymer Photovoltaics with Alternating Copolymer/Fullerene Blends and Novel Device Architectures

Authors

  • Olle Inganäs,

    Corresponding author
    1. Biomolecular and Organic Electronics Center of Organic Electronics(COE) Department of Physics, Chemistry and Biology (IFM) Linköping University SE-581 83 Linköping (Sweden)
    • Biomolecular and Organic Electronics Center of Organic Electronics(COE) Department of Physics, Chemistry and Biology (IFM) Linköping University SE-581 83 Linköping (Sweden).
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  • Fengling Zhang,

    1. Biomolecular and Organic Electronics Center of Organic Electronics(COE) Department of Physics, Chemistry and Biology (IFM) Linköping University SE-581 83 Linköping (Sweden)
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  • Kristofer Tvingstedt,

    1. Biomolecular and Organic Electronics Center of Organic Electronics(COE) Department of Physics, Chemistry and Biology (IFM) Linköping University SE-581 83 Linköping (Sweden)
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  • Lars Mattias Andersson,

    1. Biomolecular and Organic Electronics Center of Organic Electronics(COE) Department of Physics, Chemistry and Biology (IFM) Linköping University SE-581 83 Linköping (Sweden)
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  • Stefan Hellström,

    1. Departments of Chemical and Biological Engineering and Polymer Technology Chalmers University of Technology SE-412 96 Göteborg (Sweden)
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  • Mats R. Andersson

    1. Departments of Chemical and Biological Engineering and Polymer Technology Chalmers University of Technology SE-412 96 Göteborg (Sweden)
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Abstract

The synthesis of novel conjugated polymers, designed for the purpose of photovoltaic energy conversion, and their properties in polymer/fullerene materials and photovoltaic devices are reviewed. Two families of main-chain polymer donors, based on fluorene or phenylene and donor–acceptor–donor comonomers in alternating copolymers, are used to absorb the high-energy parts of the solar spectrum and to give high photovoltages in combinations with fullerene acceptors in devices. These materials are used in alternative photovoltaic device geometries with enhanced light incoupling to collect larger photocurrents or to enable tandem devices and enhance photovoltage.

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