Seebeck coefficient of p-type PbTe/PbEuTe quantum well structures

I. Sur, A. Casian, A. A. Balandin, Z. Dashevsky, V. Kantser, H. Scherrer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The electrical conductivity crand Seebeck coefficient S are calculated in (111) oriented p-type PbTe/PbEuTe quantum well (QW) structures using the iterative method for solving the kinetic equations. The carrier scattering by optical and acoustical phonons is considered. The dependencies of crand S vs. well width d and hole concentration p are studied. It is shown that for small d = 20A the energy gap between oblique L and I valleys becomes small and the Seebeck coefficient achieves large values even at very high carrier concentration of p1020 cm-1. The presence of high mobility degenerate holes in the longitudinal subbands L. valley leads to a small decrease of S. The obtained values of the conductivity and thermoelectric power agree well with the experimental data in the concentration range of p < 1020 cm-3.

Original languageEnglish
Title of host publicationProceedings ICT 2002
Subtitle of host publication21st International Conference on Thermoelectrics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages288-291
Number of pages4
ISBN (Electronic)0780376838
DOIs
StatePublished - 1 Jan 2002
Event21st International Conference on Thermoelectrics, ICT 2002 - Long Beach, United States
Duration: 25 Aug 200229 Aug 2002

Publication series

NameInternational Conference on Thermoelectrics, ICT, Proceedings
Volume2002-January

Conference

Conference21st International Conference on Thermoelectrics, ICT 2002
Country/TerritoryUnited States
CityLong Beach
Period25/08/0229/08/02

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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