Moscow University Physics Bulletin

, Volume 72, Issue 6, pp 582–586 | Cite as

Thermoelectric Figure-of-Merit Calculations in Heavily Doped p-Type Lead Telluride

  • N. I. Babenko
  • A. V. Dmitriev
Condensed Matter Physics


The thermoelectric properties of heavily doped p-PbTe have been studied theoretically in the temperature range from 300 to 900 K. Calculations are based on a three-band model of the PbTe spectrum that takes the transport of electrons and light holes into account in the L-extrema and heavy holes in the Σ-extrema. On the basis of the Boltzmann kinetic equation, a complete set of relevant kinetic characteristics, including the electrical and thermal conductivities, the Seebeck coefficient, and the thermoelectric figure-of-merit ZT has been calculated. All calculated thermoelectric quantities agree well with the available experimental data in the entire temperature interval from 300 to 900 K. The calculation reproduces a significant increase in the thermoelectric figure-of-merit to the value ZT = 1.2 which has been recently detected experimentally in heavily doped p-PbTe samples.


PbTe lead telluride thermoelectric properties three-band model Boltzmann equation figure-of-merit 


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© Allerton Press, Inc. 2017

Authors and Affiliations

  1. 1.Department of PhysicsMoscow State UniversityMoscowRussia

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