Effects of H2-intercalation on surface potential and Raman characteristics of epitaxial graphene
We explore the surface potential and Raman characteristics of as grown and ex-situ H2 intercalated epitaxial graphene, grown by Chemical Vapor Deposition (CVD) method.
In this study we present a complementary characterization of the graphene samples using Van der Pauw Hall effect, atomic force microscopy (AFM), frequency modulated Kelvin probe microscopy (FM-KPFM) and Raman spectroscopy.
By performing work function calibration and studying the surface potential and Raman characteristics of the as grown and ex-situ intercalated graphene samples, it is concluded that the interfacial layer is transformed into a free-standing graphene monolayer and the original 1LG and 2LG into 2LG and 3LG respectively.
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