Post-Deposition Treatment of an Arylated-Carbazole Conjugated Polymer for Solar Cell Fabrication

Authors

  • Xiaofeng Liu,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, Department of Materials, University of California at Santa Barbara, Santa Barbara, California 93106, USA
    Current affiliation:
    1. X.L. and W.W. contributed equally to this work.
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  • Wen Wen,

    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, Department of Materials, University of California at Santa Barbara, Santa Barbara, California 93106, USA
    2. State Key Laboratory of Electronic Thin Films and Integrated Devices, Department of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu 610054, P. R. China
    Current affiliation:
    1. X.L. and W.W. contributed equally to this work.
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  • Guillermo C. Bazan

    Corresponding author
    1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, Department of Materials, University of California at Santa Barbara, Santa Barbara, California 93106, USA
    • Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, Department of Materials, University of California at Santa Barbara, Santa Barbara, California 93106, USA.
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Abstract

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An arylated-carbazole conjugated polymer with a deep HOMO level has been developed. Solar cells based on blends of PCX3 and PC71BM show efficiency of 3.9% with a Voc of 0.96 V. The device performance can be improved to 5.1% by using polar solvent treatment, most likely as a result of modified interfacial properties.

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