Electronic structure of single-crystalline graphene grown on Cu/Ni (111) alloy film

Zhang Xue-Fu^{1, 2, 4}, Liu Zhong-Hao^{1, 4, †}, Liu Wan-Ling³, Lu Xiang-Le¹, Li Zhuo-Jun^{1, 4}, Yu Qing-Kai^{1, 4}, Shen Da-Wei^{1, 4, ‡}, Xie Xiao-Ming^{1, 2, 3, 4}

Investigation of graphene on Cu/Ni thin film. (a) Typical optical images of graphene covering on the Cu/Ni alloy thin film. Inset: Raman spectra of graphene grown on Cu/Ni. (b) The SEM morphology of graphene on Cu/Ni (111) thin film. (c) The AFM morphology of graphene grown on Cu/Ni (111) thin film. (d) Optical images of graphene transferred onto the SiO₂/Si substrate. (e) Raman spectra of graphene taken randomly from panel (d). (f) LEED pattern of graphene on Cu/Ni (111).