Izvestiya of Saratov University.

Chemistry. Biology. Ecology

ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)

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Quasi-binary Section Ag2SnS3-Sb2S3

Mamedov Sharafat H., Azerbaijan National Academy os Sciences named after Academian M. Naghiyev Institute of Catalysis and Inorganic Chemistry

Silver thiostannates and chalcostannates are widely used as promising functional materials which have semiconductor, thermoelectric, and photoelectric properties. The goal of this research is to study the Ag2SnS3-Sb2S3 phase diagram and determine the boundaries of solid solutions based on both components. Alloys were investigated using methods of physicochemical analysis. Based on the results of the study, a condition diagram of the Ag2SnS3-Sb2S3 system was constructed. It was established that the Ag2SnS3-Sb2S3 system is a quasibinary section of the Ag2SnS3-Sb2S3 quasiternal system and is the one of the eutectic type. The solubility based on Sb2S3 at room temperature is 10 mol% Ag2SnS3 , and based on silver thiostannate Ag2SnS3 it is 3 mol% Sb2S3 . Solid solutions based on Sb2S3 crystallize in a rhombic system and, with an increase in silver thiostannate concentration, the lattice parameters increase.


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