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Characterization of New Materials in A Four-Sample Thermoelectric Measurement System

Published online by Cambridge University Press:  01 February 2011

Nishant A. Ghelani
Affiliation:
Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI.
Sim Y. Loo
Affiliation:
Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI.
Duck-Young Chung
Affiliation:
Chemistry Department, Michigan State University, East Lansing, MI.
Sandrine Sportouch
Affiliation:
Chemistry Department, Michigan State University, East Lansing, MI.
Stephan de Nardi
Affiliation:
Chemistry Department, Michigan State University, East Lansing, MI.
Mercouri G. Kanatzidis
Affiliation:
Chemistry Department, Michigan State University, East Lansing, MI.
Timothy P. Hogan
Affiliation:
Chemistry Department, Michigan State University, East Lansing, MI.
George S. Nolas
Affiliation:
R & D Division, Marlo w Industries, Inc., Dallas, TX.
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Abstract

Several new materials in the CsBi4Te6, A2Bi8Se13, (A = K, Rb, Cs), HoNiSb, Ba/Ge/B (B = In, Sn), and AgPbBiQ3 (Q = S, Se, Te) systems have shown promising characteristics for thermoelectric applications. New synthesis techniques are able to produce samples at much higher rates than previously possible. This has led to a persistent challenge in thermoelectric materials research of rapid and comprehensive characterization of samples. This paper presents a description of a new 4-sample transport measurement system and the related measurement techniques. Special features of the system include fully computer-controlled operation (implemented in LabView™) for simultaneous measurement of electrical conductivity, thermo-electric power, and thermal conductivity. This system has been successfully used to characterize several new thermoelectric materials (including some of the above-mentioned compounds) and reference materials exhibiting a wide range of thermal conductivities.

Type
Research Article
Copyright
Copyright © Materials Research Society 2000

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References

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