Combinatorial Screening of Polymer:Fullerene Blends for Organic Solar Cells by Inkjet Printing

Authors

  • Anke Teichler,

    1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany
    2. Dutch Polymer Institute (DPI), PO Box 902, 5600 AX Eindhoven, The Netherlands
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  • Rebecca Eckardt,

    1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany
    2. Dutch Polymer Institute (DPI), PO Box 902, 5600 AX Eindhoven, The Netherlands
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  • Stephanie Hoeppener,

    1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany
    2. Dutch Polymer Institute (DPI), PO Box 902, 5600 AX Eindhoven, The Netherlands
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  • Christian Friebe,

    1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany
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  • Jolke Perelaer,

    1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany
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  • Alessia Senes,

    1. Konarka Austria, Altenbergerstraße 69, 4040 Linz, Austria
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  • Mauro Morana,

    1. Konarka Austria, Altenbergerstraße 69, 4040 Linz, Austria
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  • Christoph J. Brabec,

    1. Institute of Material Science, Friedrich-Alexander-University Erlangen-Nürnberg, Martensstraße 7, 91058 Erlangen, Germany
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  • Ulrich S. Schubert

    Corresponding author
    1. Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany
    • Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University, Jena, Humboldtstraße 10, 07743 Jena, Germany.
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Abstract

Polymer:fullerene blends were screened in a combinatorial approach using inkjet printing thin film libraries for photovoltaic devices. The application of inkjet printing enabled a fast and simple experimental workflow from film preparation to the study of structure-property-relationships with a very high material efficiency. Inkjet printing requires less material for the preparation of thin film libraries in comparison to other dispensing techniques, like spin-coating. Two polymers (PCPDTBT, PSBTBT) and two fullerene derivatives (mono-PCBM, bis-PCBM) were investigated in various blend ratios, concentrations, solvent ratios, and film thicknesses. Morphological and optical properties of the inkjet printed films were investigated and compared with spin-coated films. This study shows the principle of an experimental setup from solution preparation to film characterization for the combinatorial investigation of large polymer:fullerene libraries.

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