An experimental setup has been designed and built for measuring the Seebeck coefficient of bulk thermoelectric materials, thin films, and nanowire composites in the temperature range 200–350 K. The setup utilizes a differential method for measuring the Seebeck coefficient of the sample. The sample holder is a simple clamp design, utilizing a spring-loaded mounting system to load and hold the sample between two copper blocks, on which the electrical leads, as well as thermocouples, are mounted. The spring-loaded design also offers fast turn-around times, as the samples can be quickly loaded and unloaded. To measure the Seebeck coefficient, a temperature difference is generated across the sample by using four resistive heaters mounted in series on one of the copper blocks. The resulting slope of the thermo-emf versus temperature difference plot is used to obtain the Seebeck coefficient at any temperature. Test measurements were carried out on bulk samples of nickel (Ni), bismuth-telluride , antimony-telluride , as well as thin films and nanowire composites of Ni.
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e-mail: devireddy@me.lsu.edu
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February 2011
Research Papers
A Novel Experimental Device for Seebeck Coefficient Measurements of Bulk Materials, Thin Films, and Nanowire Composites
D. Pinisetty,
D. Pinisetty
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge, LA 70803
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N. Haldolaarachchige,
N. Haldolaarachchige
Physics and Astronomy,
Louisiana State University
, Baton Rouge, LA 70803
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D. P. Young,
D. P. Young
Physics and Astronomy,
Louisiana State University
, Baton Rouge, LA 70803
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R. V. Devireddy
R. V. Devireddy
Department of Mechanical Engineering,
e-mail: devireddy@me.lsu.edu
Louisiana State University
, Baton Rouge, LA 70803
Search for other works by this author on:
D. Pinisetty
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge, LA 70803
N. Haldolaarachchige
Physics and Astronomy,
Louisiana State University
, Baton Rouge, LA 70803
D. P. Young
Physics and Astronomy,
Louisiana State University
, Baton Rouge, LA 70803
R. V. Devireddy
Department of Mechanical Engineering,
Louisiana State University
, Baton Rouge, LA 70803e-mail: devireddy@me.lsu.edu
J. Nanotechnol. Eng. Med. Feb 2011, 2(1): 011006 (5 pages)
Published Online: February 4, 2011
Article history
Received:
October 21, 2010
Revised:
December 3, 2010
Online:
February 4, 2011
Published:
February 4, 2011
Citation
Pinisetty, D., Haldolaarachchige, N., Young, D. P., and Devireddy, R. V. (February 4, 2011). "A Novel Experimental Device for Seebeck Coefficient Measurements of Bulk Materials, Thin Films, and Nanowire Composites." ASME. J. Nanotechnol. Eng. Med. February 2011; 2(1): 011006. https://doi.org/10.1115/1.4003192
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