Diagram of Solid-Phase Equilibria in the SnSe–Sb2Se3–Se System and Thermodynamic Properties of Tin Antimony Selenides

Исмайлова, Э. Н.; Машадиева, Л. Ф.; Бабанлы, Д. М.; Shevelkov, Аndrei V.; Бабанлы, М. Б.

doi:10.1134/s0036023621010046

Cited by 2 publications

(2 citation statements)

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“…In the literature, the ternary Sn−Sb−Se phase diagram has not been explored in detail. Ismailova et al experimentally studied the phase equilibria in the SnSe−Sb 2 Se 3 −Se system [ 33 ]. The compositions Sn 1-x Sb x Se investigated in the present work with a cation/anion ratio of unity fall outside the reported compositional triangle, [ 33 ] though.…”

Section: Resultsmentioning

confidence: 99%

“…Ismailova et al experimentally studied the phase equilibria in the SnSe−Sb 2 Se 3 −Se system [ 33 ]. The compositions Sn 1-x Sb x Se investigated in the present work with a cation/anion ratio of unity fall outside the reported compositional triangle, [ 33 ] though. The exact crystal structures of the Sn 2 Sb 2 Se 5 and SnSb 2 Se 4 ternary phases mentioned by Ismailova et al are unknown and therefore were excluded from the DFT calculations.…”

Section: Resultsmentioning

confidence: 99%

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Solution-Mediated Inversion of SnSe to Sb2Se3 Thin-Films

Polivtseva

Kois²,

Kruzhilina

et al. 2022

Nanomaterials

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New facile and controllable approaches to fabricating metal chalcogenide thin films with adjustable properties can significantly expand the scope of these materials in numerous optoelectronic and photovoltaic devices. Most traditional and especially wet-chemical synthetic pathways suffer from a sluggish ability to regulate the composition and have difficulty achieving the high-quality structural properties of the sought-after metal chalcogenides, especially at large 2D length scales. In this effort, and for the first time, we illustrated the fast and complete inversion of continuous SnSe thin-films to Sb2Se3 using a scalable top-down ion-exchange approach. Processing in dense solution systems yielded the formation of Sb2Se3 films with favorable structural characteristics, while oxide phases, which are typically present in most Sb2Se3 films regardless of the synthetic protocols used, were eliminated. Density functional theory (DFT) calculations performed on intermediate phases show strong relaxations of the atomic lattice due to the presence of substitutional and vacancy defects, which likely enhances the mobility of cationic species during cation exchange. Our concept can be applied to customize the properties of other metal chalcogenides or manufacture layered structures.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%