Вплив Ag2Te на транспортні властивості (AgSbTe2)0,9(PbTe)0,1

• Дата: 2021
• Автори: Ragimov, S.S., Musayev, M.A., Hashimova, N.N.
• Формат: Стаття
• Мова: English
• Опубліковано: Publishing house "Academperiodika" 2021
• Теми: thermoelectric material; endothermic effect; electrical conductivity; Seebeck coefficient; Hall coefficient; semiconductors and dielectrics; термоелектричний матерiал; ендотермiчний ефект; електрична провiднiсть; коефiцiєнт Зеєбека; коефiцiєнт Холла
• Онлайн доступ: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2020120
• Назва журналу: Ukrainian Journal of Physics

The transport properties of (AgSbTe2)0.9(PbTe)0.1, namely, the electrical conductivity and the Seebeck (S) and Hall (RH) coefficients, are studied in the temperature interval 80–560 K. An endothermic peak at 410 K is found by the differential scanning calorimetry (DSC). Sharp changes in the temperature dependences of the electrical conductivity and thermoelectric power in the region near 410 K are observed. The temperature dependence of Hall coefficient passes through maximum at ∼200 K and has negative sign. It is shown that, these peculiarities are due to the presence of the Ag2Te phase. The thermoelectric Z-factor has the maximum value of 2.7 × 10−3 K−1 at 400 K.