Carbon systems

Thermoelectric transport in epitaxial graphene on a size-quantized substrate

Z. Z. Alisultanov^abc, N. A. Mirzegasanova<sup>c

a</sup> Daghestan Institute of Physics after Amirkhanov
^b Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^c Daghestan State University, Makhachkala

Abstract: Thermoelectric transport in epitaxial graphene formed on the surface of size-quantized metal and semiconductor films is studied within a simple analytical model. The conductivity and thermopower of epitaxial graphene are studied. It is shown that such a system exhibits conductivity kinks and thermopower peaks (several times higher than in the case of isolated graphene). A comparison with cases of two-dimensional and three-dimensional substrates is performed.

Received: 09.01.2014
Accepted: 22.12.2014

 English version: Semiconductors, 2015, 49:8, 1062–1068

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