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Phase Segregation and Thermoelectric Properties of AgPbmSbTem+2m=2,4,6, and 8

Published online by Cambridge University Press:  01 February 2011

Joseph Sootsman ,
Robert Pcionek ,
Huijun Kong ,
Ctirad Uher  and
Mercouri G Kanatzidis
Joseph Sootsman
Affiliation:
sootsma3@msu.edu, Michigan State University, Chemistry, Department of Chemistry, Michigan State University, East Lansing, MI, 48824, United States
Robert Pcionek
Affiliation:
pcionekr@msu.edu
Huijun Kong
Affiliation:
huijunk@umich.edu
Ctirad Uher
Affiliation:
cuher@umich.edu
Mercouri G Kanatzidis
Affiliation:
kanatzidis@chemistry.msu.edu, Michigan State University, Chemistry, United States
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Abstract

The preparation and characterization of the AgPbmSbTem+2 family of compounds with m=2, 4, 6, and 8 is reported. Phase segregation was observed in all of these materials. The lattice thermal conductivity of these samples is low (<1.1 W/m-K). Powder x-ray diffraction, thermal analysis, and electron microscope investigations of these systems show that ideal solid solutions are not formed. The transport properties of these composite materials are presented and suggest that they could have promising thermoelectric properties when optimized.

Keywords

thermoelectricityelectrical propertiestransmission electron microscopy (TEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 886: Symposium F – Materials and Technologies fore Direct Thermal-to-Electric Energy Conversion , 2005 , 0886-F08-05
Copyright
Copyright © Materials Research Society 2006

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References

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