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Energies of emitted electrons from n-type diamond NEA surface and graphene/n-type diamond junction were measured by combined field emission spectroscopy/ultraviolet photoelectrons spectroscopy (FES/UPS) system. For n-type diamond NEA surface, the energies of emitted electrons indicated that the electrons emitted from conduction band of the diamond. For graphene/diamond junction, electron emission...
Permeation of low-energy electrons through graphene was investigated. A multi-layered graphene was transferred on a Cu mesh, and electron beam was scanned over the mesh and the graphene. Up to 1% of the incident electron beam permeated through the graphene at landing energy of 20 eV. The result suggested a possibility of graphene to be used as a window material for scanning electron microscopy and...
Graphene/hexagonal boron nitride (h-BN) was characterized. Field emission from graphene/h-BN/Si structure showed low threshold voltage and enhanced emission current. Fowler-Nordheim (F-N) plots were applied to discuss the obtained field emission properties. We also examined work function using ultraviolet photoelectron spectroscopy (UPS). The obtained data suggested that graphene modified work function...
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