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Russian Microelectronics

, Volume 42, Issue 8, pp 448–452 | Cite as

Thermoelectric properties of the (Bi,Sb)2Te3-based material obtained by spark plasma sintering

  • I. A. Drabkin
  • V. V. Karataev
  • V. B. Osvenskii
  • Yu. N. Parkhomenko
  • A. I. Sorokin
  • L. P. Bulat
  • G. I. Pivovarov
  • V. T. Bublik
  • N. Yu. Tabachkova
Article
  • 121 Downloads

Abstract

The dependence of the thermoelectric properties of the nanostructured bulk (Bi,Sb)2Te3 material on the composition and the spark plasma-sintering (SPS) temperature T SPS has been studied. It has been revealed that the Bi0.4Sb1.6Te3 solid solution sintered at a temperature of 450–500°C has a thermoelectric figure of merit ZT = 1.25–1.28. The dependence of thermoelectric properties on the sintering temperature T SPS above 400°C is correlated to the transformation of the fine structure of the material due to the rearrangement of point vacancy-donor defects in the process of repeated recrystallization. It has been established that point structural defects make a considerable contribution to the formation of the thermoelectric properties of nanostructured material.

Keywords

spark plasma sintering nanostructured material bismuth telluride thermoelectric properties structural defects Harman method 

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Copyright information

© Pleiades Publishing, Ltd. 2013

Authors and Affiliations

  • I. A. Drabkin
    • 1
  • V. V. Karataev
    • 1
  • V. B. Osvenskii
    • 1
  • Yu. N. Parkhomenko
    • 1
  • A. I. Sorokin
    • 1
  • L. P. Bulat
    • 1
  • G. I. Pivovarov
    • 2
  • V. T. Bublik
    • 3
  • N. Yu. Tabachkova
    • 3
  1. 1.OAO GiredmetMoscowRussia
  2. 2.Technological Institute of Superhard and Novel Carbon MaterialsTroitsk, Moscow oblastRussia
  3. 3.Moscow Institute of Steel and AlloysNational University of Science and TechnologyMoscowRussia

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