Dipolar Chromophore Functional Layers in Organic Field Effect Transistors

Authors

  • Peerasak Paoprasert,

    1. Department of Materials Science and Engineering and Materials Science Program University of Wisconsin Madison, WI 53706 (USA)
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  • Byoungnam Park,

    1. Department of Materials Science and Engineering and Materials Science Program University of Wisconsin Madison, WI 53706 (USA)
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  • Heesuk Kim,

    1. Department of Chemistry, University of Wisconsin Madison, WI 53706 (USA)
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  • Paula Colavita,

    1. Department of Chemistry, University of Wisconsin Madison, WI 53706 (USA)
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  • Robert J. Hamers,

    Corresponding author
    1. Department of Chemistry, University of Wisconsin Madison, WI 53706 (USA)
    • Department of Chemistry, University of Wisconsin Madison, WI 53706 (USA).
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  • Paul G. Evans,

    Corresponding author
    1. Department of Materials Science and Engineering and Materials Science Program University of Wisconsin Madison, WI 53706 (USA)
    • Department of Materials Science and Engineering and Materials Science Program University of Wisconsin Madison, WI 53706 (USA).
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  • Padma Gopalan

    Corresponding author
    1. Department of Materials Science and Engineering and Materials Science Program University of Wisconsin Madison, WI 53706 (USA)
    • Department of Materials Science and Engineering and Materials Science Program University of Wisconsin Madison, WI 53706 (USA).
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  • P. P. and B. P. contributed equally to the paper. Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

original image

A layer of functionalized disperse red 19 (DR19) chromophore molecules leads to novel reversible photoelectrical characteristics in organic thin film field effect transistor. Photoassisted poling, along with the change in the dipole of the DR19 under illumination, and photoinduced charge transfer to electron traps in the DR19 layer combine to change the threshold voltage of transistors by up to 100 V.

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