Effects of Oxygen Interaction with PbTe Surface and Their Influence on Thermoelectric Material Properties

Автор(ы) I.V. Horichok1, V.V. Prokopiv1, R.I. Zapukhlyak1, O.M. Matkivskyj1, T.O. Semko1, I.O. Savelikhina2, T.O. Parashchuk3

1Vasyl Stefanyk Precarpathian National University, 57, Shevchenko Str., 76018 Ivano-Frankivsk, Ukraine

2Ivano-Frankivsk National Medical University, 2, Halytska Str., 76018 Ivano-Frankivsk, Ukraine

3The Institute of Advanced Manufacturing Technology, 37, Wroclawska Str., 30-011 Krakow, Poland

Выпуск Том 10, Год 2018, Номер 5
Даты Получено 12.08.2018; в отредактированной форме 24.10.2018; опубликовано online 29.10.2018
Ссылка I.V. Horichok, V.V. Prokopiv, R.I. Zapukhlyak, et al., J. Nano- Electron. Phys. 10 No 5, 05006 (2018)
DOI https://doi.org/10.21272/jnep.10(5).05006
PACS Number(s) 72.15.Jf, 61.72.up
Ключевые слова Lead Telluride, Thermoelectrical parameters, Diffusion (10) , Surface oxidation.

The results of the study of thermoelectric material properties obtained by pressing the powder of lead telluride samples are presented. It is shown that an adequate model of pressed samples structure should take into account the presence of a near-surface layer, which formation is associated with the interaction of the material with atmospheric oxygen. The calculation of carrier mobility in the samples has been spent with considering the mechanisms of carrier dispersion on acoustic phonons and thermoelectronic emission.

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