Визначення енергії Фермі електронів у телуриді свинцю на основі вимірювань коефіцієнта Зеебека

Editorial Board PCSS Journal; Т. Potiatynnyk; O. Matkivskyi; V. Hovdiak; I. Horichok

doi:10.15330/pcss.26.3.584-591

Authors

Т. Potiatynnyk Vasyl Stefanyk Carpathian National University, Ivano-Frankivsk, Ukraine
O. Matkivskyi Vasyl Stefanyk Carpathian National University, Ivano-Frankivsk, Ukraine
V. Hovdiak Vasyl Stefanyk Carpathian National University, Ivano-Frankivsk, Ukraine
I. Horichok Vasyl Stefanyk Carpathian National University, Ivano-Frankivsk, Ukraine

DOI:

https://doi.org/10.15330/pcss.26.3.584-591

Keywords:

lead telluride, thermoelectric propertes, scattering mechanism, Fermi energy

Abstract

The possibilities of using the model of dominance of one carrier scattering mechanism for calculating the Fermi energy µ using experimental values of the Seebeck coefficient S_exp were analyzed. The specific electrical conductivity of n-PbTe:I was calculated in the relaxation time approximation with simultaneous consideration of many scattering mechanisms. The obtained Fermi energy values were compared with the values calculated as µ(S_exp). The influence of corrections to the Bloch form of wave functions and screening of scattering centers by carriers on the numerical values of mobilities and numerical values of Fermi energies determined in the model of dominance of one scattering mechanism was investigated.

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