Validity of rigid band approximation of PbTe thermoelectric materials

The tuning of carrier concentration through chemical doping is very important for the optimization of thermoelectric materials. Traditionally, a rigid band model is used to understand and guide doping in such semiconductors, but it is not clear whether such an approximation is valid. This letter foc...

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Bibliographic Details
Main Authors: Yoshiki Takagiwa, Yanzhong Pei, Gregory Pomrehn, G. Jeffrey Snyder
Format: Article
Language:English
Published: AIP Publishing LLC 2013-07-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4809545