Polymorphic Phase Transformations in Nanocrystalline Ag₂S Silver Sulfide in a Wide Temperature Interval and Influence of Nanostructured Ag₂S on the Interface Formation in Ag₂S/ZnS Heteronanostructure.

ABSTRACT: Phase transformations that take place in nanocrystalline Ag₂S silver sulfide have been systematically studied at temperatures from 298 to 893 K. The crystal structures of the polymorphic modifications α-Ag₂S, β-Ag₂S, and γ-Ag₂S of nanocrystalline Ag₂S have been found. It is established that the interstitial spacings between ions of silver in the superionic phases β-Ag₂S and γ-Ag₂S are noticeably smaller than diameter of the Ag⁺ ion. As a result of which, the probabilities of filling the sites of the metal sublattices of these phases with Ag atoms are very small. It was found that the "α-Ag₂S-β-Ag₂S" and "β-Ag₂S-γ

SUBMITTER: Valeeva AA 

PROVIDER: S-EPMC9146971 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature