Electronic Quality Factor and Universal Electrical Conductivity of Thermoelectric   〖Bi〗_2 〖Sr〗_(2-x) 〖[Sr(BO_2 )_2 ]_x Co〗_(1.8) O_y

Giorgi  Kakhniashvili; Irakli  Nakhutsrishvili

doi:10.52340/gs.2022.04.04.20

Authors

Giorgi Kakhniashvili Institute of Cybernetics of the Technical University of Georgia
Irakli Nakhutsrishvili Institute of Cybernetics of the Technical University of Georgia

DOI:

https://doi.org/10.52340/gs.2022.04.04.20

Keywords:

electronic stability factor, universal electrical conductivity, thermoelectric

Abstract

The electronic suitability factor and universal electrical conductivity (σ') of thermoelectric material are discussed in the article. The data on and dependences, where T is the absolute temperature, S is the Seebeck coefficient, and σ-specific electrical conductivity, are given. It is shown that the doping of cobaltite with does not affect the σ' - Т and S- σ' dependences, which is determined by the parameter factor.

Downloads

Download data is not yet available.

References

X.Zhang, Z.Bu et al. Electronic quality factor for thermoelectrics. Science Advances, 2020, 6, eabc0726 (1-5).

G.Gianza, S.Molto et al. SnSe:K intermatalic polycrystals prepared by arc-melting. Materials Sci., 2022, 10.1007/s10853-021-06864-4.

A.S.Kuzanyan, N.G.Margiani et al. Impact of Sr(BO_2 )_2 dopant on power factor of 〖Bi〗_2 〖Sr〗_2 〖Co〗_1.8 O_y thermoelectric. Proc. Acad. Sci. Arm., Physics, 2021, 56, 228-233.

Y.Pey, X.Shi et al. Convengerce of electronic bands for high performance bulk thermoelectrics. Nature, 2011, 473, 66-69.

L.Zhao, F.Y.Fei et al. Improvement of thermoelectric prperties and their correlations with electron effective mass in 〖Cu〗_1.98 S_x 〖Se〗_(1-x) . Sci. Reports, 2017, 7, 4036 (1-11).