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Synthesis Of Graphene/Diamond Double-Layered Structure For Improving Electron Field Emission Properties

Author

Listed:
  • YU QIAO

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • TING QI

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • JIE LIU

    (#x2020;Institute of Microelectronics, Tsinghua University, Beijing 100084, P. R. China‡Tsinghua National Laboratory for Information Science and Technology, Beijing 100084, P. R. China)

  • ZHIYONG HE

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • SHENGWANG YU

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • YANYAN SHEN

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • HONGJUN HEI

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

Abstract

Ultrananocrystalline diamond (UNCD) films on silicon were prepared by microwave plasma chemical vapor deposition (MPCVD) method using argon-rich CH4/H2/Ar plasmas. The graphene sheets synthesized by chemical vapor deposition (CVD) were successfully transferred on to the UNCD surface to fabricate electron field emission (EFE) property-enhanced graphene/UNCD films. The surface morphology, structure and composition of the graphene/UNCD double-layered structures were characterized by scanning electron microscope (SEM), atomic force microscope (AFM), Raman spectroscopy and grazing incidence X-ray diffraction (GXRD). GXRD clearly shows the characteristic diffraction peaks of both diamond and graphene. The Raman spectrum shows the characteristic band of diamond at 1332cm−1 and D, G and 2D bands of graphene at 1360, 1550 and 2610cm−1, respectively. The EFE behavior of the composite films can be turned on at E0=2.2V/μm, attaining a current density of 0.065mA/cm2 at an applied field of 7.3V/μm.

Suggested Citation

  • Yu Qiao & Ting Qi & Jie Liu & Zhiyong He & Shengwang Yu & Yanyan Shen & Hongjun Hei, 2016. "Synthesis Of Graphene/Diamond Double-Layered Structure For Improving Electron Field Emission Properties," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 23(03), pages 1-8, June.
    • Handle: RePEc:wsi:srlxxx:v:23:y:2016:i:03:n:s0218625x16500116
    DOI: 10.1142/S0218625X16500116
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