VUV Photoemission Spectroscopy Characteristics of Graphene on SiO2

Abstract

The characterization of the photoemission properties of a graphene monolayer deposited on silicon dioxide under vacuum ultraviolet radiation is determined. Within the range of photon energies between 8 and 20eV, graphene shows high photoemission efficiency compared, for example, with nickel. In addition, graphene appears to have a notable enhancing effect on the number of photoemitted electrons injected from the underlying dielectric.