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Doping of p-type ZnSb: Single parabolic band model and impurity band conduction

Böttger, P. H. Michael and Pomrehn, Gregory S. and Snyder, G. Jeffrey and Finstad, Terje G. (2011) Doping of p-type ZnSb: Single parabolic band model and impurity band conduction. Physica Status Solidi A, 208 (12). pp. 2753-2759. ISSN 1862-6300. https://resolver.caltech.edu/CaltechAUTHORS:20120123-102905745

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Abstract

Even though the ZnSb compound has been known for decades and used in the earliest thermoelectric devices, the potential of the material as a modern thermoelectric may be underestimated. We synthesized p-type doped samples using ball-milling and hot-pressing and measured their thermoelectric properties including mobility and carrier concentration. Establishing a single parabolic band (SPB) model using these measurements on the Cu, Sn, and self-doped samples allows for predictions on the optimum thermoelectric efficiency. It is projected to reach zT = 0.75 at 700 K. Deviations from the SPB model at low carrier concentrations are discussed and impurity band conduction is brought in as a possible explanation.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1002/pssa.201127211DOIUNSPECIFIED
http://onlinelibrary.wiley.com/doi/10.1002/pssa.201127211/abstractPublisherUNSPECIFIED
ORCID:
AuthorORCID
Snyder, G. Jeffrey0000-0003-1414-8682
Additional Information:© 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received 6 April 2011, revised 20 May 2011, accepted 5 August 2011. Published online 1 September 2011. Funding from the Norwegian Research Council is thankfully acknowledged.
Funders:
Funding AgencyGrant Number
Norwegian Research CouncilUNSPECIFIED
Subject Keywords: antimonides; impurity band conduction; single parabolic band; thermoelectric materials
Issue or Number:12
Record Number:CaltechAUTHORS:20120123-102905745
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120123-102905745
Official Citation:Böttger, P. H. M., Pomrehn, G. S., Snyder, G. J. and Finstad, T. G. (2011), Doping of p-type ZnSb: Single parabolic band model and impurity band conduction. physica status solidi (a), 208: 2753–2759. doi: 10.1002/pssa.201127211
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28911
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:23 Jan 2012 19:00
Last Modified:03 Mar 2020 13:01

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