Thermoelectric transport in quantum well superlattices

A full theory of thermoelectric transport in superlattices, including the well width and energy dependence of the optical and acoustic phonon scattering and the effects of confinement in raising valley degeneracy is developed. It is shown that these features result in qualitatively significant modif...

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Bibliographic Details
Published in:Applied physics letters 1997-05, Vol.70 (21), p.2834-2836
Main Authors: Broido, D. A., Reinecke, T. L.
Format: Article
Language:English
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Summary:A full theory of thermoelectric transport in superlattices, including the well width and energy dependence of the optical and acoustic phonon scattering and the effects of confinement in raising valley degeneracy is developed. It is shown that these features result in qualitatively significant modifications in the predicted figure of merit of superlattice systems. Results are given for PbTe superlattices, and comments are made on recent experimental results for such systems.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119018