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Thermoelectric Generators Made with Novel Lead Telluride Based Materials

Published online by Cambridge University Press:  31 January 2011

Chun-I Wu ,
Steven N Girard ,
Joseph Sootsman ,
Edward Timm ,
Jennifer Ni ,
Robert Schmidt ,
Mercouri Kanatzidis ,
Harold Schock ,
Eldon D. Case  and
Duck Young Chung
...Show all authors
Chun-I Wu
Affiliation:
wuchuni@msu.edu, Michigan State University, Electrical and Computer Engineering, East Lansing, Michigan, United States
Steven N Girard
Affiliation:
s-girard@northwestern.edu, Northwestern University, Chemistry, Evanston, Illinois, United States
Joseph Sootsman
Affiliation:
j-sootsman@northwestern.edu, Northwestern University, Chemistry, Evanston, Illinois, United States
Edward Timm
Affiliation:
timm@egr.msu.edu, Michigan State University, Mechanical Engineering, East Lansing, Michigan, United States
Jennifer Ni
Affiliation:
Michigan State University, Chemical Engineering and Materials Science, East Lansing, Michigan, United States
Robert Schmidt
Affiliation:
schmi402@msu.edu, Michigan State University, Chemical Engineering and Materials Science, East Lansing, Michigan, United States
Mercouri Kanatzidis
Affiliation:
m-kanatzidis@northwestern.edu, Northwestern University, Chemistry, Evanston, Illinois, United States
Harold Schock
Affiliation:
schock@msu.edu, Michigan State University, Mechanical Engineering, East Lansing, Michigan, United States
Eldon D. Case
Affiliation:
casee@egr.msu.edu, Michigan State University, Chemical Engineering and Materials Science, East Lansing, Michigan, United States
Duck Young Chung
Affiliation:
dychung@anl.gov, Argonne National Laboratory, Materials Science Division, Argonne, Illinois, United States
Timothy Hogan
Affiliation:
hogant@msu.edu, Michigan State University, Chemical Engineering and Materials Science, East Lansing, Michigan, United States
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Abstract

For the material (Pb0.95Sn0.05Te)1-x(PbS)x nanostructuring from nucleation and growth and spinodal decomposition were reported to enhance the thermoelectric figure of merit over bulk PbTe, producing ZT of 1.1 - 1.4 at 650 K for x = 0.08[1]. Thermoelectric modules made from (Pb0.95Sn0.05Te)1-x(PbS)x materials with various hot-side metal electrodes were fabricated and tested. Short circuit current was measured on unicouples of Pb0.95Sn0.05Te – PbS 8% (n-type) legs and Ag0.9Pb9Sn9Sb0.6Te20 (p-type) legs over 10 (A) for a hot side temperature of 870K, and a cold side of 300K. Hot pressed (Pb0.95Sn0.05Te)1-x(PbS)x materials were also investigated for module fabrication. Investigations of the electrical properties of hot-pressed (Pb0.95Sn0.05Te)1-x(PbS)x materials are presented along with the latest advancements in the fabrication and characteristics of modules based on the processing of these materials.

Keywords

thermoelectrichot pressingelectronic material
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1218: Symposium Z – Energy Harvesting–From Fundamentals to Devices , 2009 , 1218-Z02-11
Copyright
Copyright © Materials Research Society 2010

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