Large-domain Organic Crystalline Films for Field-effect Transistors

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<jats:title>Abstract</jats:title><jats:p>We report a method to fabricate thin films of large-domain organic semiconductor single crystals dispersed over the whole surface of centimeter-scale substrates for field-effect transistors. Growing less than 500-nm thick film-like organic crystals of sub-millimeter sizes densely in a furnace independently of substrates by physical vapor transport, the collection of the single crystals is mechanically attached to the surface of gate dielectric layers. The organic transistors made of large-domain benzo-annulated pentathienoacene crystals exhibited pronounced transistor performances with mobility values of ∼ 0.2-2 cm<jats:sup>2</jats:sup>/Vs, which is as high as devices of one-piece crystals. The result demonstrates that the above technique provides a method to apply high performance of organic single crystal transistors to real circuitry devices on large-area substrates.</jats:p>

Journal

  • MRS Proceedings

    MRS Proceedings 1091 2008-01-01

    Springer Science and Business Media LLC

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