EFFECT OF GRAIN SIZES ON THERMOELECTRIC PROPERTIES OF EXTRUDED SAMPLES OF [Bi.sub.0.5][Sb.sub.1.5][Te.sub.3] SOLUTION

Electrical and thermal properties of single crystalline and extruded samples of a p-type [Bi.sub.0.5][Sb.sub.1.5][Te.sub.3] solid solution with various grain sizes are studied in a wide temperature range of 80- 300 K. It is revealed that the grain sizes significantly affect the values of the thermal...

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Bibliographic Details
Published in:Russian physics journal 2019-08, Vol.62 (4), p.664
Main Authors: Barkhalov, B. Sh, Tagiyev, M.M, Bagiyeva, G.Z, Abdinova, G.D, Aliyev, R. Yu, Magerramova, K.I
Format: Article
Language:English
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Summary:Electrical and thermal properties of single crystalline and extruded samples of a p-type [Bi.sub.0.5][Sb.sub.1.5][Te.sub.3] solid solution with various grain sizes are studied in a wide temperature range of 80- 300 K. It is revealed that the grain sizes significantly affect the values of the thermal-e. m. f (a), electrical conductivity (a), and thermal conductivity (x) coefficients of the samples under study. Keywords: single crystal, extrusion, grain, electrical conductivity, thermal-e. m. f., thermal conductivity, electrons, phonons, grain boundaries.
ISSN:1064-8887
DOI:10.1007/s11182-019-01761-5