Synthesis and electrical properties of Bi2Te3-based thermoelectric materials doped with Er, Tm, Yb, and Lu
- Authors: Yapryntsev M.N.1, Lyubushkin R.A.1, Soklakova O.N.1, Ivanov O.N.1
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Affiliations:
- Belgorod National Research University
- Issue: Vol 51, No 6 (2017)
- Pages: 710-713
- Section: XV International Conference “Thermoelectrics and Their Applications—2016”, St. Petersburg, November 15–16, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/199984
- DOI: https://doi.org/10.1134/S106378261706029X
- ID: 199984
Cite item
Abstract
Nanopowders of Bi2Te3 and R0.1Bi1.9Te3 (where R = Er, Tm, Yb, Lu) are obtained by microwave solvothermal synthesis. The powder-like materials are compacted by cold isostatic compression followed by annealing in argon. The influence of the doping agent on the structure and characteristics of the derived materials are investigated. It is demonstrated that the introduction of rare-earth elements (2 at %) into the bismuth-telluride lattice leads to a decrease in the electrical resistivity and to an increase in the Seebeck coefficient. The best thermoelectric properties are obtained for the sample of bismuth telluride doped with thulium.
About the authors
M. N. Yapryntsev
Belgorod National Research University
Author for correspondence.
Email: yaprintsev@bsu.edu.ru
Russian Federation, Belgorod, 308015
R. A. Lyubushkin
Belgorod National Research University
Email: yaprintsev@bsu.edu.ru
Russian Federation, Belgorod, 308015
O. N. Soklakova
Belgorod National Research University
Email: yaprintsev@bsu.edu.ru
Russian Federation, Belgorod, 308015
O. N. Ivanov
Belgorod National Research University
Email: yaprintsev@bsu.edu.ru
Russian Federation, Belgorod, 308015