Low dimensional systems

Particular features of the thermoelectric power factor of encapsulated structures formed by two-dimensional layers

S. Yu. Davydov^a, O. V. Posrednik<sup>b

a</sup> Ioffe Institute, St. Petersburg, Russia
^b Saint Petersburg Electrotechnical University "LETI", St. Petersburg, Russia

Abstract: Model approach is used to obtain expression for the thermoelectric power factor $\sigma S^2$ ($\sigma$ – is the static conductivity, $S$ – is the Seebeck coefficient), characterized monoatomic 2D layer of IV group elements, placed between two slabs, formed by hexagonal 2D layers of III-V com-pounds. The $h$-BN/graphene/$h$-BN structure is thoroughly studied and the dependence of the sigma $S^2$ value on the chemical potential $\mu$ is examined. The analytical estimates of the function sigma $\sigma S^2(\mu)$ are given.

Keywords: static conductivity, Seebeck coefficient, hexagonal monoatomic 2D layers.

Received: 03.02.2023
Revised: 03.02.2023
Accepted: 19.02.2023

DOI: 10.21883/FTT.2023.04.55305.15

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