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Thermoelectric figure-of-merit under large temperature differences

Min, Gao, Rowe, David Michael and Kontostavlakis, K. 2004. Thermoelectric figure-of-merit under large temperature differences. Journal of Physics D: Applied Physics 37 (8) , pp. 1301-1304. 10.1088/0022-3727/37/8/020

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Abstract

The dimensionless thermoelectric figure-of-merit, ZT, of Bi2Te3 based alloys was investigated under a large temperature difference using a recently reported 'open/short circuit' measurement technique. It is shown that the measured ZT decreases with an increase in temperature difference. Theoretical analysis indicates that this dependence can be explained by taking into account the Thomson effect. An equation is obtained for a modified thermoelectric figure-of-merit which is valid for measurement over large temperature differences.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Institute of Physics
ISSN: 1361-6463
Last Modified: 04 Jun 2017 01:42
URI: https://orca.cardiff.ac.uk/id/eprint/1893

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