Phase diagram of the TlSe-SmSe system and transport properties of TlSmX2 (X = S, Se, Te) crystals

Phase diagram of the TlSe-SmSe system and transport properties of TlSmX2 (X = S, Se, Te) crystals

We have studied phase equilibria in the TlSe-SmSe system and showed that it contains a congruently melting compound of composition TlSmSe 2 (1: 1 ratio of the constituent selenides) and a TlSe-based solid solution series. The electrical and thermophysical properties of TlSmX 2 (X = S, Se, Te) crysta...

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Veröffentlicht in:Inorganic materials 2010-12, Vol.46 (12), p.1299-1303
Hauptverfasser: Seyidov, F. M., Kerimova, E. M., Gasanov, N. Z.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Constituents
Crystals
Electric power generation
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Phonons
Resistivity
Thermal conductivity
Thermoelectricity
Thermophysical properties
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Zusammenfassung:We have studied phase equilibria in the TlSe-SmSe system and showed that it contains a congruently melting compound of composition TlSmSe 2 (1: 1 ratio of the constituent selenides) and a TlSe-based solid solution series. The electrical and thermophysical properties of TlSmX 2 (X = S, Se, Te) crystals have been investigated, and their conductivity type, band gap, thermal conductivity, and thermoelectric power have been determined. The results are used to clarify the mechanisms of carrier and phonon scattering in the crystals.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168510120058