Synthesis and Properties of Highly Efficient Thermoelectric Materials Based on Lead Telluride with Antimony and Silver Impurity

Authors

  • D. M. Freik Vasyl Stefanyk Precarpathian National University
  • S. І. Mudriy Ivan Franko Lviv National University
  • Ts. A. Kriskov Kamyanets-Podilsky State University
  • І. V. Gorіchok Vasyl Stefanyk Precarpathian National University
  • O. M. Matkіvsky Vasyl Stefanyk Precarpathian National University
  • T. O. Semko Vasyl Stefanyk Precarpathian National University

DOI:

https://doi.org/10.15330/pcss.16.1.49-54

Keywords:

lead telluride, doping, solid solutions, LAST, thermoelectric properties

Abstract

The paper presents the results of research of X-ray diffraction and thermoelectric parameters (thermoelectric coefficient α, electrical conductivity σ and thermal conductivity coefficient k) of materials based on Lead Telluride: PbTe, PbTe:Sb,
PbTe-Sb2Te3, Pb18Ag1Sb1Te20, Pb18Ag2Te20 and PbTe-Ag2Te. Established that the highest values of thermoelectric figure of merit have samples of PbTe:Sb (0,3 at.%) and system Pb18Ag1Sb1Te20, Pb18Ag2Te20. For PbTe:Sb is due to a significant increase of the electrical conductivity. For the other two materials is due to a increase the thermoelectric coefficient and a significant decrease of thermal conductivity compared to pure PbTe.

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Published

2015-03-15

How to Cite

Freik, D. M., Mudriy S. І., Kriskov, T. A., Gorіchok І. V., Matkіvsky O. M., & Semko, T. O. (2015). Synthesis and Properties of Highly Efficient Thermoelectric Materials Based on Lead Telluride with Antimony and Silver Impurity. Physics and Chemistry of Solid State, 16(1), 49–54. https://doi.org/10.15330/pcss.16.1.49-54

Issue

Vol. 16 No. 1 (2015)

Section

Scientific articles
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