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High-Performance Organic Thin-Film Transistor Based on a Dipolar Organic Semiconductor

Authors

  • Lizhen Huang,

    1. Universität Würzburg, Institut für Organische Chemie & Röntgen Research, Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany
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  • Matthias Stolte,

    1. Universität Würzburg, Institut für Organische Chemie & Röntgen Research, Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany
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  • Hannah Bürckstümmer,

    1. Universität Würzburg, Institut für Organische Chemie & Röntgen Research, Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany
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  • Frank Würthner

    Corresponding author
    1. Universität Würzburg, Institut für Organische Chemie & Röntgen Research, Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany
    • Universität Würzburg, Institut für Organische Chemie & Röntgen Research, Center for Complex Material Systems, Am Hubland, 97074 Würzburg, Germany.
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Abstract

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A merocyanine dye with an outstandingly large dipole moment of 14 Debye affords thin-film transistors with 0.18 cm2V−1s−1 hole mobility and a 106 on/off ratio. These results suggest that molecules that lack symmetry and possess large dipole moments can perform excellent charge carrier transport contrary to established molecular semiconductor design strategies.

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