The carbon's solubility into copper is incredibly very low and as a consequence mainly surface diffusion and nucleation of carbon atoms are involved. For that reason and the growth kinetics, the graphene thickness is restricted to predominantly a monolayer. The large benefit is that the graphene can be developed on https://www.quora.com/profile/Trevor-Flatcher-2/Advantages-of-Silicon-Carbide-Materials-in-High-Temperature-Electronic-Devices-Silicon-carbide-SiC-has-emerged-as-a-c