Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)

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Bulk Nanostructured Extruded Material Based on Bi2Te2.7Se0.3 Solid Solution for Thermoelectric Converters

Authors
M.M. Tagiyev1, *, T. G. Nagiyev1, G. D. Abdinova2, R. Y. Aliyev2, K. I. Magerramova, T. I. Pirieva2
1Azerbaijan State Economic University, AZ1001, Baku, Azerbaijan
2Institute of Physics of the Ministry of Science and Education of Azerbaijan, AZ1141, Baku, Azerbaijan
*Corresponding author. Email: mail_tagiyev@mail.ru
Corresponding Author
M.M. Tagiyev
Available Online 14 May 2026.
DOI
10.2991/978-94-6239-668-5_14How to use a DOI?
Keywords
grain; nanostructure; extrusion. Mobility; defects
Abstract

The electrical properties of extruded bulk nanostructured samples of the Bi2Te2.7Se0.3 solid solution were studied in the temperature range of 77 ÷ 300 K and magnetic field strength up to74 x 104 A/m that did not undergo annealing after extrusion, and the same samples that underwent optimal annealing. It was found that at low temperatures, charge carriers are primarily scattered by structural defects and grain boundaries. As grain size increases, the number of grain boundaries and the concentration of defects within grains decrease. As grain size increases, the concentration due to ionized defects decreases, leading to increased charge carrier mobility.

Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
Series
Advances in Engineering Research
Publication Date
14 May 2026
ISBN
978-94-6239-668-5
ISSN
2352-5401
DOI
10.2991/978-94-6239-668-5_14How to use a DOI?
Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - M.M. Tagiyev
AU  - T. G. Nagiyev
AU  - G. D. Abdinova
AU  - R. Y. Aliyev
AU  - K. I. Magerramova
AU  - T. I. Pirieva
PY  - 2026
DA  - 2026/05/14
TI  - Bulk Nanostructured Extruded Material Based on Bi₂Te₂.₇Se₀.₃ Solid Solution for Thermoelectric Converters
BT  - Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
PB  - Atlantis Press
SP  - 127
EP  - 137
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-668-5_14
DO  - 10.2991/978-94-6239-668-5_14
ID  - Tagiyev2026
ER  -