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Enhanced thermoelectric properties in PbTe Nanocomposites

Published online by Cambridge University Press:  31 January 2011

Hillary Kirby ,
Joshua Martin ,
Anuja Datta ,
Lidong Chen  and
George S. Nolas
Hillary Kirby
Affiliation:
[email protected], University of South Florida, Physics, Tampa, Florida, United States
Joshua Martin
Affiliation:
[email protected], NIST, Ceramics Division, Gaithersburg, Maryland, United States
Anuja Datta
Affiliation:
[email protected], University of South Florida, Physics, Tampa, Florida, United States
Lidong Chen
Affiliation:
[email protected], Chinese Academy of Sciences, Shanghai Institute of Ceramics, Shanghai, China
George S. Nolas
Affiliation:
[email protected], University of South Florida, Physics, Tampa, Florida, United States
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Abstract

Dimensional nanocomposites of PbTe with varying carrier concentrations were prepared from undoped and Ag doped PbTe nanocrystals synthesized utilizing an alkaline aqueous solution-phase reaction. The nanocrystals were densified by Spark Plasma Sintering (SPS) for room temperature resistivity, Hall, Seebeck coefficient, and temperature dependent thermal conductivity measurements. The nanocomposites show an enhancement in the thermoelectric properties compared to bulk PbTe with similar carrier concentrations, thus demonstrating a promising approach for enhanced thermoelectric performance.

Keywords

Hall effectnanoscalethermoelectric
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1166: Symposium N – Materials and Devices for Thermal-to-Electric Energy Conversion , 2009 , 1166-N03-27
Copyright
Copyright © Materials Research Society 2009

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