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A Theoretical study of the Thermoelectric Transport Coefficients of n-type PbTe

Published online by Cambridge University Press:  13 February 2014

Jawaher Al-Otaibi  and
Gyaneshwar P. Srivastava
Jawaher Al-Otaibi
Affiliation:
School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK
Gyaneshwar P. Srivastava
Affiliation:
School of Physics, University of Exeter, Stocker Road, Exeter, EX4 4QL, UK
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Abstract

In this work we present a theoretical study of the transport coefficients of n-type PbTe. The electronic transport coefficients are calculated using the isotropic-nearly-free-electron approximation, including the effect of band non-parabolicity on electron-phonon scattering. The lattice thermal transport coefficient is computed by employing the isotropic continuum model for the dispersion relation for acoustic as well as optical phonon branches, an isotropic anharmonic continuum model for crystal anharmonicity, and the single-mode relaxation time scheme. The role of transverse optical (TO) phonon modes in anharmonic interactions will be discussed in detail.

Keywords

thermal conductivitythermoelectricthermoelectricity
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1661: Symposium UU – Phonon-Interaction-Based Materials Design—Theory, Experiments and Applications , 2014 , mrsf13-1661-uu05-03
Copyright
Copyright © Materials Research Society 2014 

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References

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