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arXiv · 1504.08174

Enhancement in thermoelectric properties of FeSb2 by Sb site deficiency

Anup V. Sanchela·Ajay D. Thakur·C. V. Tomy
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Abstract

We report a strategy based on introduction of point defects for improving the thermoelectric properties of FeSb2, a promising candidate for low temperature applications. Introduction of Sb deficiency to the tune of 20% leads to enhancement in the values of electrical conductivity ({\sigma}) and Seebeck coefficient (S) accompanied with a concomitant suppression in lattice thermal conductivity (\k{appa}lat) values in samples prepared using conventional solid state reaction route. These observations in polycrystalline FeSb2-x provides ample motivation for a dedicated exploration of thermoelectric behavior of the corresponding single crystalline as well as hot-pressed polycrystalline counterparts.

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Anup V. Sanchela, Ajay D. Thakur, C. V. Tomy. 2015-04-30. Enhancement in thermoelectric properties of FeSb2 by Sb site deficiency. https://arxiv.org/abs/1504.08174

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