Fig. 1
a Photograph of bare Cu foil (left panel) and graphene grown on Cu foil (right panel), b Raman spectrum of graphene/Cu, and c Raman spectrum of graphene/SiO2/Si
Fig. 1 | Nanoscale Research Letters
a Photograph of bare Cu foil (left panel) and graphene grown on Cu foil (right panel), b Raman spectrum of graphene/Cu, and c Raman spectrum of graphene/SiO2/Si