Photoactive Gate Dielectrics

Authors

  • Qian Shen,

    1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Linjun Wang,

    1. Department of Chemistry, Tsinghua University, 100084 Beijing (P. R. China)
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  • Song Liu,

    1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Yang Cao,

    1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Lin Gan,

    1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Xuefeng Guo,

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
    • Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Michael L. Steigerwald,

    1. Department of Chemistry and the Columbia University, Energy Frontiers Research Center, Columbia University, New York, 10027 (USA)
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  • Zhigang Shuai,

    Corresponding author
    1. Department of Chemistry, Tsinghua University, 100084 Beijing (P. R. China)
    • Department of Chemistry, Tsinghua University, 100084 Beijing (P. R. China)
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  • Zhongfan Liu,

    Corresponding author
    1. Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
    • Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry, of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (P. R. China)
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  • Colin Nuckolls

    Corresponding author
    1. Department of Chemistry and the Columbia University, Energy Frontiers Research Center, Columbia University, New York, 10027 (USA)
    • Department of Chemistry and the Columbia University, Energy Frontiers Research Center, Columbia University, New York, 10027 (USA).
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Abstract

original image

Ageneral methodology towards stable high-performance photocontrollable organic thin-film transistors (OTFTs) by using photochromic spiropyrans (SP) combined with polymethyl methacrylate (PMMA) as a photoactive gate dielectric is reported. Capacitance and mobility transitions are demonstrated theoretically and experimentally when the SP molecules undergo their documented reversible photoisomerization. This universal strategy of incorporating molecular functionalities into OTFTs offers attractive new prospects for the development of molecular devices with tailored electronic and other properties.

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