Publication: Crystal chemistry, DFT calculation and optical properties of the double perovskite stannate Sr2Sn0.8In0.8W0.4O6
Дата
2022
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Аннотация
© 2022Sr2Sn0.8In0.8W0.4O6 double perovskite powder was, first, prepared following an experimental study on the effects of substitutions of In and W in the high transparent strontium stannate SrSnO3 (SSO). The high temperature solid state reaction method was adopted for the preparation of the desired phase. Further, the W and In substitution's effects on the variation of the electronic structure was investigated theoretically by density functional theory (DFT) calculations. Rietveld's refinement of the X-ray diffraction pattern announces a tetragonal symmetry of the crystal lattice (I4/m), characterized by a reduction in octahedral inclinations due to double substitution. IR absorption spectroscopy announced the presence of carbonates and water molecules due to moisture-swing sorption and confirmed by TG analysis. The optical properties studied by UV-Vis spectroscopy have shown that the material is transparent in the visible region of the spectrum. A band gap of 3.46 eV was calculated using Tauc plot, indicating a possible semiconducting behavior.
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Crystal chemistry, DFT calculation and optical properties of the double perovskite stannate Sr2Sn0.8In0.8W0.4O6 / Belgacem, B. [et al.] // Journal of Molecular Structure. - 2022. - 1259. - 10.1016/j.molstruc.2022.132716
URI
https://www.doi.org/10.1016/j.molstruc.2022.132716
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85125694031&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000790895300003
https://openrepository.mephi.ru/handle/123456789/28788