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Advanced Materials

Ultrathin Film Organic Transistors: Precise Control of Semiconductor Thickness via Spin-Coating

Authors

  • Fengjiao Zhang,

    1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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  • Chong-an Di,

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
    • Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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  • Nikolai Berdunov,

    1. Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
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  • Yuanyuan Hu,

    1. Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
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  • Yunbin Hu,

    1. Laboratory of Materials Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences CAS, Shanghai 200032, China
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  • Xike Gao,

    Corresponding author
    1. Laboratory of Materials Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences CAS, Shanghai 200032, China
    • Laboratory of Materials Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences CAS, Shanghai 200032, China.
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  • Qing Meng,

    1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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  • Henning Sirringhaus,

    Corresponding author
    1. Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
    • Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, UK
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  • Daoben Zhu

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
    • Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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Abstract

Construction of ultrathin film organic transistors is an important challenge towards deeper understanding of the charge transport mechanism and multifunctional applications. We report on precise thickness control of ultrathin films of several organic semiconductors by using a simple spin-coating approach. Ultrathin film, n-channel organic transistors with mobilities well over 1.0 cm2 V−1 s−1 have been realized and their potential in high-sensitivity gas sensing and other applications is demonstrated.

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