Phase equilibria of the Sb2Te3+2BiI3↔Bi2Te3+2SbI3 reciprocal system: Synthesis and characterization of the cation-substituted Bi1−xSbxTeI solid solutions

Ahmadov, E. J.; Orujlu, Elnur N.; Бабанлы, Д. М.; Mammadov, Dunyamali A.; Alizade, E. H.; Mamedova, I. A.; Abdullayev, N. A.; Mamedov, Nazim; Бабанлы, М. Б.

doi:10.1016/j.jallcom.2022.167388

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2023

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“…An analysis of the structural features of tetradymite and other tetradymite-like compounds [14,18,[27][28][29][30] shows that, in a fivelayer package, the substitution of atoms by related atoms in both cationic and anionic positions is possible. Primary compounds of the system have close lattice parameters and the same space group.…”

Section: Introductionmentioning

confidence: 99%

PHASE RELATIONS IN THE Sb2Te2S-Bi2Te2S SYSTEM AND CHARACTERIZATION OF Sb2-xBixTe2S SOLID SOLUTIONS

Aliyev¹,

Orujlu²,

Бабанлы³

et al. 2023

Chemical Problems

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The phase equilibria of the Sb2Te2S-Bi2Te2S system was studied by powder X-ray diffraction (PXRD), differential thermal analysis (DTA), scanning electron microscope (SEM) and energy dispersive Xray (EDX) microanalysis. It was shown that due to incongruent melting of the Sb2Te2S compound the system is non-quasibinary, but it is stable below the solidus and characterized by the formation of a continuous series of solid solutions with a tetradymite-like hexagonal structure. The lattice parameters were determined from powder diffraction patterns. It was established that the crystal lattice parameters of solid solutions vary linearly with composition

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Section: Introductionmentioning

confidence: 99%