Demonstration of electron filtering to increase the Seebeck coefficient in ErAs:InGaAs/InGaAlAs superlattices

Preprint

19 October 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0510490

Abstract

In this letter, we explore electron filtering as a technique to increase Seebeck coefficient and the thermoelectric power factor of heterostructured materials over that of the bulk. We present a theoretical model in which Seebeck coefficient and the power factor can be increased in an InGaAs based composite material. Experimental measurements of the cross-plane Seebeck coefficient are presented and confirm the importance of the electron filtering technique to decouple the electrical conductivity and Seebeck coefficient to increase the thermoelectric power factor.

Keywords

INCREASE THE SEEBECK
THERMOELECTRIC POWER
SEEBECK COEFFICIENT
COMPOSITE MATERIAL
ELECTRON FILTERING
THEORETICAL MODEL
POWER FACTOR
FILTERING

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Version 1, 2005-10-19, ArXiv

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