ISSN 0005-2531 (Print) ISSN 2522-1841 (Online)
THERMODYNAMIC PROPERTIES OF THE Cu2GeSe3 COMPOUND
Yu.A.Yusibov, Z.M.Aliyeva, M.B.Babanly

 

The Cu2GeSe3 compound and phases based on it are of interest as environmentally friendly thermoelectric and photovoltaic materials. This paper presents the results of a thermodynamic study of this compound by the method of electromotive forces. We measured the EMF of concentration cells concerning copper electrode with solid Cu+ conductive electrolyte Cu4RbCl3I2 in the 300-450 K temperature range. Based on the obtained experimental data, the partial molar functions of copper in equilibrium alloys from the three-phase region of the Cu2GeSe3 -GeSe2-Se phase diagram, as well as the standard thermodynamic functions of formation and the standard entropy of the Cu2GeSe3 compound, are calculated. A comparative analysis of the obtained results with the available literature data was carried out

doi.org/10.32737/0005-2531-2023-1-108-114

Keywords : EMF method, solid electrolyte, Cu4RbCl3I2, copper-germanium selenide, thermodynamic functions
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THE LAST NUMBER OF THE JOURNAL
№2 2024
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