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Thermoelectric Properties of PbTe/Pb1−x. Eux Te Quantum Wells

Published online by Cambridge University Press:  10 February 2011

H. Scherrer ,
Z. Dashevsky ,
V. Kantser ,
A. Casian ,
I. Sur  and
A. Sandu
H. Scherrer
Affiliation:
Laboratoire de Physique du Solide, F-54042 Ecole des Mines, Nancy, France
Z. Dashevsky
Affiliation:
Ben-Gurion University of Negev, Beer-Sheva, Israel
V. Kantser
Affiliation:
Institute of Applied Physics, Academy of Science of Moldova
A. Casian
Affiliation:
Technical University of Moldova, MD-2004, Kishinau, Moldova
I. Sur
Affiliation:
Technical University of Moldova, MD-2004, Kishinau, Moldova
A. Sandu
Affiliation:
Technical University of Moldova, MD-2004, Kishinau, Moldova
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Abstract

The electrical conductivity, Seebeck coefficient, and thermoelectric power factor of PbTe/Pb1−xEuxTe quantum well structures are investigated theoretically. The variational method is employed. The anisotropy of effective masses, the multivalley character of the bulk semiconductors and also the dependence of effective masses in dimensional quantization subbands on the well width are taken into account. The carrier scattering both on optical and acoustical phonons is considered for structures with (111) and (100) crystallographic orientation. It is found that the power factor is larger in (100) oriented quantum wells. The results of recent experiments are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 545: Symposium Z – Thermoelectric Materials 1998 - The Next Generation… , 1998 , 99
Copyright
Copyright © Materials Research Society 1999

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