National Physical Laboratory

Effects of H2-intercalation on local electronic and structural properties 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.

Further Information

Published: 23 June 2014

Authors: C. Melios, V. Panchal, C. E. Giusca, W. Strupinski, S.R.P. Silva and O. Kazakova

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Last Updated: 7 Nov 2014
Created: 7 Apr 2014


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