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Enhancement in thermoelectric properties of FeSb2 by Sb site deficiency

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 نشر من قبل Anup Sanchela
 تاريخ النشر 2015
  مجال البحث فيزياء
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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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