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Gas Dielectric Transistor of CuPc Single Crystalline Nanowire for SO2 Detection Down to Sub-ppm Levels at Room Temperature

Authors

  • Talgar Shaymurat,

    1. Key Laboratory of UV Light Emitting Materials and Technology under Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
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  • Qingxin Tang,

    Corresponding author
    1. Key Laboratory of UV Light Emitting Materials and Technology under Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
    • Key Laboratory of UV Light Emitting Materials and Technology under Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China.
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  • Yanhong Tong,

    1. Key Laboratory of UV Light Emitting Materials and Technology under Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
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  • Lin Dong,

    1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
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  • Yichun Liu

    Corresponding author
    1. Key Laboratory of UV Light Emitting Materials and Technology under Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China
    • Key Laboratory of UV Light Emitting Materials and Technology under Ministry of Education, Northeast Normal University, Changchun 130024, P. R. China.
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Abstract

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A room-temperature highly-sensitive SO2 sensor with fast response and complete recovery is constructed based on gas dielectric field-effect transistor (FET) of CuPc single crystalline nanowire. The exposed conductive channel by gas dielectric is responsible for the high sensitivity to SO2 and the adsorption of the SO2 molecules dramatically enhances the field-effect mobility. These results not only open up new opportunities to develop new SO2 sensors, but also provide an efficient way to improve the performance of organic FETs.

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