Synthesis and Properties of Highly Efficient Thermoelectric Materials Based on Lead Telluride with Antimony and Silver Impurity
Journal Title: Фізика і хімія твердого тіла - Year 2015, Vol 16, Issue 1
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.
Authors and Affiliations
D. M. Freik, S. I/ Mudriy, Ts. A. Kriskov, I. V. Horіchok, O. M. Matkіvsky, T. O. Semko
Keywords
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- EP ID EP308053
- DOI 10.15330/pcss.16.1.49-54
- Views 31
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