Abstract
It is shown that, in contradiction with the fundamental results obtained for free graphene, graphene films grown on the Rh(111) surface to thicknesses from one to ~(12–15) single layers do not absorb visible electromagnetic radiation emitted from the surface and influence neither the brightness nor true temperature of the sample. At larger thicknesses, such absorption occurs. This effect is observed for the surfaces of other metals, specifically, Pt(111), Re(1010), and Ni(111) and, thus, can be considered as being universal. It is thought that the effect is due to changes in the electronic properties of thin graphene layers because of electron transfer between graphene and the metal substrate.
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Original Russian Text © E.V. Rut’kov, N.P. Lavrovskaya, E.S. Sheshenya, N.R. Gall, 2017, published in Fizika i Tekhnika Poluprovodnikov, 2017, Vol. 51, No. 4, pp. 517–523.
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Rut’kov, E.V., Lavrovskaya, N.P., Sheshenya, E.S. et al. Optical transparency of graphene layers grown on metal surfaces. Semiconductors 51, 492–497 (2017). https://doi.org/10.1134/S1063782617040182
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DOI: https://doi.org/10.1134/S1063782617040182