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
Related Articles
- EP ID EP308053
- DOI 10.15330/pcss.16.1.49-54
- Views 44
- Downloads 0
The Electrochemical Insertion of Lithium Ions into Porous Carbon Material
The features of electrochemical insertion of lithium ions into porous carbon material (PCM) are explored by galvanostatic discharge and cyclic voltamperometry methods. PCM was obtained by hydrothermal carbonization of pl...
Investigation of Changes in Resistivity of n Si with Temperature and Uniaxial Stress
In this work the changes in resistivity of n Si with temperature and uniaxial stress X, oriented both in <100> and in [111] direction, were investigated. The value of the anisotropy parameter of mobility was obtained in...
Formation of the Sputtered Phase of PbTe Crystals by Ar+ Plasma and Re-deposition of the Sputtered Species at Secondary Neutral Mass Spectrometry Conditions
Formation of the Pb and Te sputtered phase under exposure of the lateral surface of PbTe crystals grown from melt by the Bridgman method by Ar+ plasma at Secondary Neutral Mass Spectrometry (SNMS) conditions and re-depos...
Nonradiative Resonance Energy Transfer in Nanoscale Systems and its Practical Application
The nonradiative resonant energy transfer in systems containing quantum dots and metal nanoparticles underlies an accurate and sensitive analytical methods. Because the efficiency of energy transfer depends strongly on t...
The Nature of the Formation of the Compounds MeIMeIIIP2S6(Se6) (where MeI - Cu, Ag; MeIII - In, Bi, Cr) and Methods of Growing for Their Single Crystals
Physico-chemical interaction in the systemsMeIMeIIIS2(Se2) -“P2S4(Se4)” was studied using X-ray powder diffraction and differential thermal analysis. The technological conditions of growing single crystals for the compou...