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Thermoelectric Properties of Bi2SrCo2O9 Tellurium-Doped Single Crystalline Whiskers

Published online by Cambridge University Press:  01 February 2011

Dwayne Bourne ,
Xiaofeng Tang ,
Kelvin Aaron ,
Julius Barnes ,
James Payne  and
Terry M. Tritt
Dwayne Bourne
Affiliation:
jbarnes@physics.scsu.edu, South Carolina State Univ, Biological & Physical Sciences, United States
Xiaofeng Tang
Affiliation:
txiaofe@clemson.edu, Clemson University, Materials Science and Engineering, United States
Kelvin Aaron
Affiliation:
kaaron@CLEMSON.EDU, Clemson University, Physics and Astronomy, United States
Julius Barnes
Affiliation:
jbarnes@physics.scsu.edu, South Carolina State Univ, Biological & Physical Sciences, United States
James Payne
Affiliation:
jbarnes@physics.scsu.edu, South Carolina State Univ, Biological & Physical Sciences, United States
Terry M. Tritt
Affiliation:
ttritt@clemson.edu, Clemson University, Physics and Astronomy, United States
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Abstract

Long single crystalline whiskers (10-200 µm diameter) were synthesized using tellurium-doped precursors. The length of these whiskers varies from less than 1 mm up to 9 mm. The thermopower and resistivity were approximately 150 µV/K and 5 mΩ-cm respectively at 325K. The thermopower was measured using a differential technique, while the resistivity was measured using a standard four-probe method. The thermal conductivity of these small samples was measured using our parallel thermal conductance technique. The total thermal conductivity was on the order of 2 Wm−1K−1.

Keywords

thermoelectricitythermal conductivityTe
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-F11-08
Copyright
Copyright © Materials Research Society 2006

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References

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