Fig. 2From: Controllable Growth of the Graphene from Millimeter-Sized Monolayer to Multilayer on Cu by Chemical Vapor Deposition a The photograph of the as-grown graphene domains on Cu foil after oxidation. b Optical microscopy images of the graphene domains in (a). c, d The optical microscopy and scanning electron microscopy of the multilayer graphene domains transferred to SiO2, respectivelyBack to article page