Concentration polarization and ionic conductivity of nanocomposite thermoelectric materials K0.01Cu1.94S, K0.02Cu1.94S, K0.03Cu1.94S
Kubenova M.M. Balapanov M.K. Kuterbekov K.A. Akhmetgaliev B. Ishembetov R.K. Almukhametov R.F. Zeleev M. Kabyshev A.M. Alina R. Kondakirov R.E. Kenzhebek M.K.
2024L.N. Gumilyov Eurasian National University
Eurasian Journal of Physics and Functional Materials
2024#8Issue 145 - 51 pp.
The paper presents experimental results of concentration polarization and ionic conductivity of nanocomposite thermoelectric materials K0.01Cu1.94S, K0.02Cu1.94S, K0.03Cu1.94S. According to X-ray phase analysis, the synthesized samples are monoclinic jarleite Cu1.93÷1.97S with an admixture of oxygen oxide Cu2S and monoclinic chalcocyte. High values of total ionic conductivity are observed, ranging from 0.86 to 1.5 Cm/cm. The lowest ionic conductivity (0.86 Cm/cm at 355 ◦ C) is observed for alloy K0.02Cu1.94S. In addition, it was found that with an increase in the concentration of potassium in the studied materials, ionic conductivity tends to decrease, activation energy increases, but the characteristics of ion transport remain high, corresponding to superionic materials.
activation energy , ionic conductivity , nanocomposite , superionic semiconductors
Text of the article Перейти на текст статьи
L.N. Gumilyov Eurasian National University, Astana, Kazakhstan
Ufa University of Science and Technology, Ufa, Russian Federation
Bashkir State Medical University, Ufa, Russian Federation
L.N. Gumilyov Eurasian National University
Ufa University of Science and Technology
Bashkir State Medical University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026