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Synthesis and Thermoelectric Properties of Lead Chalcogenide Nanocomposites

Published online by Cambridge University Press:  01 February 2011

Joshua Martin ,
Stevce Stefanoski ,
Li Wang ,
Lidong Chen  and
George S. Nolas
Joshua Martin
Affiliation:
jmartin@cas.usf.edu, University of South Florida, Physics, 4202 E. Folwer Ave., PHY 114, Tampa, FL, 33620, United States, 813-974-8236
Stevce Stefanoski
Affiliation:
sstefano@mail.usf.edu, University of South Florida, Department of Physics, 4202 E. Fowler Ave., PHY 207, Tampa, FL, 33620, United States
Li Wang
Affiliation:
wangli@mail.sic.ac.cn, Shanghai Institute of Ceramics, State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Dingxi Road 1295, Chinese Academy of Sciences, Shanghai, 200050, China, People's Republic of
Lidong Chen
Affiliation:
cld@mail.sic.ac.cn, Shanghai Institute of Ceramics, State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Dingxi Road 1295, Chinese Academy of Sciences, Shanghai, 200050, China, People's Republic of
George S. Nolas
Affiliation:
gnolas@cas.usf.edu, University of South Florida, Department of Physics, 4202 E. Fowler Ave., PHY 207, Tampa, FL, 33620, United States
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Abstract

Doped lead telluride dimensional nanocomposites were prepared by densifying nanocrystals synthesized employing an alkaline aqueous solution-phase reaction. The nanocrystal synthesis procedure resulted in high product yields of over 2 g per batch. These nanocrystals were then subjected to Spark Plasma Sintering (SPS) for densification. Transport properties were evaluated through temperature dependent resistivity, Hall, Seebeck coefficient, and thermal conductivity measurements. The results for these lead telluride nanocomposites were compared to bulk polycrystalline lead tellurides with similar carrier concentrations.

Keywords

thermoelectricitynanostructuregrain boundaries
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1044: Symposium U – Thermoelectric Power Generation , 2007 , 1044-U01-05
Copyright
Copyright © Materials Research Society 2008

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