Effect of Grain Sizes on Thermoelectric Properties of Extruded Samples of Bi 0.5 Sb 1.5 Te 3  Solution

B. Sh. Barkhalov; M. M. Tagiyev; G. Z. Bagiyeva; G. D. Abdinova; R. Yu. Aliyev; K. I. Magerramova

doi:10.1007/s11182-019-01761-5

Effect of Grain Sizes on Thermoelectric Properties of Extruded Samples of Bi_0.5Sb_1.5Te₃ Solution

Authors: Barkhalov B.S.¹, Tagiyev M.M.², Bagiyeva G.Z.¹, Abdinova G.D.¹, Aliyev R.Y.¹, Magerramova K.I.¹
Affiliations:
1. Institute of Physics of the National Academy of Sciences of Azerbaijan
2. Azerbaijan State Economic University
Issue: Vol 62, No 4 (2019)
Pages: 664-672
Section: Article
URL: https://ogarev-online.ru/1064-8887/article/view/241755
DOI: https://doi.org/10.1007/s11182-019-01761-5
ID: 241755

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Abstract

Electrical and thermal properties of single crystalline and extruded samples of a p-type Bi0.5Sb1.5Te3 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. (α), electrical conductivity (σ), and thermal conductivity (χ) coefficients of the samples under study.