Some thermoelectric phenomena in copper chalcogenides replaced by lithium and sodium alkaline metals
Kubenova M.M. Kuterbekov K.A. Balapanov M.K. Ishembetov R.K. Kabyshev A.M. Bekmyrza K.Z.
September 2021MDPI
Nanomaterials
2021#11Issue 9
This review presents thermoelectric phenomena in copper chalcogenides substituted with sodium and lithium alkali metals. The results for other modern thermoelectric materials are presented for comparison. The results of the study of the crystal structure and phase transitions in the ternary systems Na-Cu-S and Li-Cu-S are presented. The main synthesis methods of nanocrystalline copper chalcogenides and its alloys are presented, as well as electrical, thermodynamic, thermal, and thermoelectric properties and practical application. The features of mixed electron–ionic conductors are discussed. In particular, in semiconductor superionic copper chalcogenides, the presence of a “liquid-like phase” inside a “solid” lattice interferes with the normal propagation of phonons; therefore, superionic copper chalcogenides have low lattice thermal conductivity, and this is a favorable factor for the formation of high thermoelectric efficiency in them.
Conductivity , Copper sulfide , Crystal structure , Diffusion , Seebeck coefficient , Superionic conductors , Thermal conductivity , Thermoelectric materials
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Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Nur-Sultan, 010008, Kazakhstan
Physical and Technical Institute, Bashkir State University, Ufa, 450076, Russian Federation
Faculty of Physics and Technical Sciences
Physical and Technical Institute
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026