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STUDY OF TIN SELENIDE MECHANOCHEMICAL SYNTHESIS

Marcela Achimovičová

First published: 2011-06-20https://doi.org/10.5593/sgem2011/s12.110View metrics

Abstract

Tin selenide SnSe was synthesized from tin and selenium powder precursors by high- energy milling in pl anetary ball mill. X-ray diffractio n analysis confirmed that an orthorhombic tin selenide SnSe phase was formed already after 4 min of milling. 119Sn MГ¶ssbauer spectroscopy documented the values of SnSe isomer shifts corresponded to Sn in the oxidation state II. The size and morphology of tin selenide particles were studied by specific surface area measuremen ts, and transmission electron microscopy. Specific surface area of tin selenides increased with increasing time of mechanochemical synthesis. According to the transmission electron microscopy observations mechanochemically synthesized SnSe forms crystals from 5 nm to 500 nm with plate-like morphology. SnSe nanoparticles show a good absorption in the visible region of UV-Vis-NIR optical spectra and th ey evidence indirect and direct type of transition in the lattice.

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Publication details

Title
STUDY OF TIN SELENIDE MECHANOCHEMICAL SYNTHESIS
Authors
Marcela Achimovičová
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference
Publisher
Stef92 Technology
Year
2011
Pages
Not available yet
ISSN
1314-2704
ISBN
Not available yet
Language
en
Publication type
Conference Paper
Keywords
References20
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