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Article

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

  • Jawaher Al-Otaibi (a1) and Gyaneshwar P. Srivastava (a1)
Abstract
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.

Copyright
COPYRIGHT: © Materials Research Society 2014 
References
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[15] The authors of [7] were contacted regarding the difference between their presented experimental data for S and σ and their computed mamium of ZT. They have confirmed the inconsistency in their graphs, indicating that their ZT results are consistent with ours.
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MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
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