Comparison of the Mobility–Carrier Density Relation in Polymer and Single-Crystal Organic Transistors Employing Vacuum and Liquid Gate Dielectrics

Authors

  • Yu Xia,

    1. Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis, MN 55455 (USA)
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  • Jeong Ho Cho,

    1. Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis, MN 55455 (USA)
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  • Jiyoul Lee,

    1. Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis, MN 55455 (USA)
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  • P. Paul Ruden,

    1. Department of Electrical and Computer Engineering University of Minnesota 200 Union St. SE Minneapolis, MN 55455 (USA)
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  • C. Daniel Frisbie

    Corresponding author
    1. Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis, MN 55455 (USA)
    • Department of Chemical Engineering and Materials Science University of Minnesota 421 Washington Ave. SE Minneapolis, MN 55455 (USA).
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Abstract

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The mobility of polymer and single-crystal transistors using a universal test-bed where the injected carrier density can vary more than four orders of magnitude are investigated and compared. A striking difference in the mobility–carrier density relationship was observed, revealing a fundamentally different charge-transport mechanism between polymer and single-crystal transistors.

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