Thermoelectric Properties of Bi2 –xLuxTe2.7Se0.3 Solid Solutions
- Авторы: Vasil’ev A.1, Yapryntsev M.1, Ivanov O.1,2, Zhezhu M.1
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Учреждения:
- Belgorod National Research University
- Belgorod State Technological University named after V.G. Shukhov
- Выпуск: Том 53, № 5 (2019)
- Страницы: 673-677
- Раздел: XVI International Conference “thermoelectrics and Their Applications–2018” (Iscta 2018,) St. Petersburg, October 8–12, 2018
- URL: https://journals.rcsi.science/1063-7826/article/view/206143
- DOI: https://doi.org/10.1134/S1063782619050282
- ID: 206143
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Аннотация
The thermoelectric properties of compounds based on Bi2 –xLuxTe2.7Se0.3 solid solutions with x = 0, 0.05, 0.1, and 0.2 are studied. The samples for investigations are prepared by chemical-solution deposition (to synthesize the initial powders) and spark plasma sintering (to obtain bulk samples). The patterns of changes in the electrical resistivity, Seebeck coefficient, and total thermal conductivity of the samples are determined as a function of the lutetium content. It is established that the optimal combination of these thermoelectric characteristics is attained for the composition with x = 0.05, which demonstrates the highest thermoelectric figure of merit (ZT ≈ 0.9 in the temperature range of 400–480 K) among all the studied compositions.
Об авторах
A. Vasil’ev
Belgorod National Research University
Автор, ответственный за переписку.
Email: 748070@bsu.edu.ru
Россия, Belgorod, 308015
M. Yapryntsev
Belgorod National Research University
Email: 748070@bsu.edu.ru
Россия, Belgorod, 308015
O. Ivanov
Belgorod National Research University; Belgorod State Technological University named after V.G. Shukhov
Email: 748070@bsu.edu.ru
Россия, Belgorod, 308015; Belgorod, 308012
M. Zhezhu
Belgorod National Research University
Email: 748070@bsu.edu.ru
Россия, Belgorod, 308015