Figure 4From: Van der Waals epitaxy and characterization of hexagonal boron nitride nanosheets on grapheneXPS spectra of h-BN/graphene on SiO 2 /Si. (a) Survey spectrum. (b-d) XPS spectra of B1s, N1s, and C1s core levels, respectively. The peaks of (b-d) were fitted with Gaussian curves (red peaks), and good fits could be observed for the raw data and the fitting data.Back to article page