The work is devoted to the study of the thermoelectric properties of solid crystal YbxBi2-xTe3. In the work presents the results of studies of the thermoelectric properties of YbxBi2-xTe3 (х≤0.10) solid solutions before and after annealing in the temperature range (300-580)K. Regularities of changes in the electrical conductivity, Seebeck coefficient and total thermal conductivity of the samples depending on the content of ytterbium (Yb) are established. Dependences of electrical conductivity, Seebeck coefficient, thermal conductivity on temperature for the crystal under study are plotted. Temperature curves were recorded using a Termoscan-2 low-frequency temperature recorder at a heating rate of 283 K/ min. Temperature measurements of phase transformations were carried out with combined chromel-alumel thermocouples. Studies of conductivity σ, thermoelectric power (S). were carried out by the four-probe method at direct current in the temperature range of 300-600 K. Ohmic contacts were applied using alloys. It has been established that the optimal combination of these thermoelectric characteristics is achieved for the compositions x = 0.1, which are characterized by the maximum thermoelectric index (ZT=0.87) of the figure of merit in the temperature range of 420-500 K after annealing at 500 K for τ=240 hours. It was revealed that the YbxBi2-xTe3 systems under study are n-type semiconductor thermoelectric materials in the temperature range of 300-600K.
| Published in | World Journal of Applied Physics (Volume 8, Issue 1) |
| DOI | 10.11648/j.wjap.20230801.11 |
| Page(s) | 1-5 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
YbxBi2-xTe3, Thermoelectric, SEE Beck Coefficient, Conductivity, Efficiency
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APA Style
Famil Imran Mamedov, Seyyara Adil Nabieva, Sevinj Zellabdin Melikova, Gunel Talat Imanova. (2023). Effect of Annealing on Thermoelectric Properties of Crystals YbxBi2-xTe3. World Journal of Applied Physics, 8(1), 1-5. https://doi.org/10.11648/j.wjap.20230801.11
ACS Style
Famil Imran Mamedov; Seyyara Adil Nabieva; Sevinj Zellabdin Melikova; Gunel Talat Imanova. Effect of Annealing on Thermoelectric Properties of Crystals YbxBi2-xTe3. World J. Appl. Phys. 2023, 8(1), 1-5. doi: 10.11648/j.wjap.20230801.11
AMA Style
Famil Imran Mamedov, Seyyara Adil Nabieva, Sevinj Zellabdin Melikova, Gunel Talat Imanova. Effect of Annealing on Thermoelectric Properties of Crystals YbxBi2-xTe3. World J Appl Phys. 2023;8(1):1-5. doi: 10.11648/j.wjap.20230801.11
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Download@article{10.11648/j.wjap.20230801.11,
author = {Famil Imran Mamedov and Seyyara Adil Nabieva and Sevinj Zellabdin Melikova and Gunel Talat Imanova},
title = {Effect of Annealing on Thermoelectric Properties of Crystals YbxBi2-xTe3},
journal = {World Journal of Applied Physics},
volume = {8},
number = {1},
pages = {1-5},
doi = {10.11648/j.wjap.20230801.11},
url = {https://doi.org/10.11648/j.wjap.20230801.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjap.20230801.11},
abstract = {The work is devoted to the study of the thermoelectric properties of solid crystal YbxBi2-xTe3. In the work presents the results of studies of the thermoelectric properties of YbxBi2-xTe3 (х≤0.10) solid solutions before and after annealing in the temperature range (300-580)K. Regularities of changes in the electrical conductivity, Seebeck coefficient and total thermal conductivity of the samples depending on the content of ytterbium (Yb) are established. Dependences of electrical conductivity, Seebeck coefficient, thermal conductivity on temperature for the crystal under study are plotted. Temperature curves were recorded using a Termoscan-2 low-frequency temperature recorder at a heating rate of 283 K/ min. Temperature measurements of phase transformations were carried out with combined chromel-alumel thermocouples. Studies of conductivity σ, thermoelectric power (S). were carried out by the four-probe method at direct current in the temperature range of 300-600 K. Ohmic contacts were applied using alloys. It has been established that the optimal combination of these thermoelectric characteristics is achieved for the compositions x = 0.1, which are characterized by the maximum thermoelectric index (ZT=0.87) of the figure of merit in the temperature range of 420-500 K after annealing at 500 K for τ=240 hours. It was revealed that the YbxBi2-xTe3 systems under study are n-type semiconductor thermoelectric materials in the temperature range of 300-600K.},
year = {2023}
}
TY - JOUR T1 - Effect of Annealing on Thermoelectric Properties of Crystals YbxBi2-xTe3 AU - Famil Imran Mamedov AU - Seyyara Adil Nabieva AU - Sevinj Zellabdin Melikova AU - Gunel Talat Imanova Y1 - 2023/03/04 PY - 2023 N1 - https://doi.org/10.11648/j.wjap.20230801.11 DO - 10.11648/j.wjap.20230801.11 T2 - World Journal of Applied Physics JF - World Journal of Applied Physics JO - World Journal of Applied Physics SP - 1 EP - 5 PB - Science Publishing Group SN - 2637-6008 UR - https://doi.org/10.11648/j.wjap.20230801.11 AB - The work is devoted to the study of the thermoelectric properties of solid crystal YbxBi2-xTe3. In the work presents the results of studies of the thermoelectric properties of YbxBi2-xTe3 (х≤0.10) solid solutions before and after annealing in the temperature range (300-580)K. Regularities of changes in the electrical conductivity, Seebeck coefficient and total thermal conductivity of the samples depending on the content of ytterbium (Yb) are established. Dependences of electrical conductivity, Seebeck coefficient, thermal conductivity on temperature for the crystal under study are plotted. Temperature curves were recorded using a Termoscan-2 low-frequency temperature recorder at a heating rate of 283 K/ min. Temperature measurements of phase transformations were carried out with combined chromel-alumel thermocouples. Studies of conductivity σ, thermoelectric power (S). were carried out by the four-probe method at direct current in the temperature range of 300-600 K. Ohmic contacts were applied using alloys. It has been established that the optimal combination of these thermoelectric characteristics is achieved for the compositions x = 0.1, which are characterized by the maximum thermoelectric index (ZT=0.87) of the figure of merit in the temperature range of 420-500 K after annealing at 500 K for τ=240 hours. It was revealed that the YbxBi2-xTe3 systems under study are n-type semiconductor thermoelectric materials in the temperature range of 300-600K. VL - 8 IS - 1 ER -
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