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MATERIALS SCIENCE AND TECHNOLOGY. SEMICONDUCTORS
ArticleName Thermoelectric Properties of Spark Plasma Sintering Synthesized (Bi,Sb)2Te3 Based Bulk Thermoelectric Material
ArticleAuthor I. A. Drabkin, V. V. Karataev, V. B. Osvensky, Yu. N. Parkhomenko, A. I. Sorokin, L. P. Bulat, G. I. Pivovarov, V. T. Bublik, N. Yu. Tabachkova
ArticleAuthorData

Giredmet

I. A. Drabkin

V. V. Karataev

V. B. Osvensky
Yu. N. Parkhomenko

A. I. Sorokin

L. P. Bulat

 

Technical Institute for Ultrahard and New Carbon Materials
G. I. Pivovarov

 

National University of Science and Technology MISiS

V. T. Bublik

N. Yu. Tabachkova

Abstract

Thermoelectric properties of (Bi,Sb)2Te3 nanostructured bulk material as a function of composition and spark plasma sintering temperature were investigated. The Bi0,4Sb1,6Te3 alloys at sintering temperature 450—500 °C with ZT=1,25—1,28 figure of merit was fabricated. Thermoelectric properties ad a function of sintering temperature above 400 °C correlate with fine structure change. It was found that point structure defects introduce essential contribution to the formation of nanostructured material thermoelectric properties.

keywords Spark plasma sintering, nanostructured material, bismuth telluride, thermoelectric properties, structural defects, Harman method
References

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