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Mamedov S. H. Quasi-binary Section Ag2SnS3-Sb2S3. Izvestiya of Saratov University. New series. Series: Chemistry. Biology. Ecology, 2020, vol. 20, iss. 1, pp. 49-54. DOI:


Quasi-binary Section Ag2SnS3-Sb2S3


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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