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Advanced Materials

Controlled Synthesis of Large-Scale, Uniform, Vertically Standing Graphene for High-Performance Field Emitters

Authors

  • Lili Jiang,

    1. Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Tianzhong Yang,

    1. Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Fei Liu,

    1. State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology and School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
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  • Jing Dong,

    1. School of Aerospace, Tsinghua University, Beijing 100084, P. R. China
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  • Zhaohui Yao,

    1. School of Aerospace, Tsinghua University, Beijing 100084, P. R. China
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  • Chengmin Shen,

    1. Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
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  • Shaozhi Deng,

    1. State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology and School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
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  • Ningsheng Xu,

    1. State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology and School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
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  • Yunqi Liu,

    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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  • Hong-Jun Gao

    Corresponding author
    1. Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
    • Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
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Abstract

Large-scale, uniform, vertically standing graphene with atomically thin edges are controllably synthesized on copper foil using a microwave-plasma chemical vapor deposition system. A growth mechanism for this system is proposed. This film shows excellent field-emission properties, with low turn-on field of 1.3 V μm−1, low threshold field of 3.0 V μm−1 and a large field-enhancement factor more than 10 000.

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