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Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill
Copper(II) selenide, CuSe was prepared from Cu and Se powders in a stoichiometric ratio by a rapid, and convenient one-step mechanochemical synthesis, after 5 and 10 min of milling in a planetary, and an industrial vibratory, mill. The kinetics of the synthesis, and the structural, morphological, op...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602807/ https://www.ncbi.nlm.nih.gov/pubmed/33076574 http://dx.doi.org/10.3390/nano10102038 |
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author | Achimovičová, Marcela Baláž, Matej Girman, Vladimír Kurimský, Juraj Briančin, Jaroslav Dutková, Erika Gáborová, Katarína |
author_facet | Achimovičová, Marcela Baláž, Matej Girman, Vladimír Kurimský, Juraj Briančin, Jaroslav Dutková, Erika Gáborová, Katarína |
author_sort | Achimovičová, Marcela |
collection | PubMed |
description | Copper(II) selenide, CuSe was prepared from Cu and Se powders in a stoichiometric ratio by a rapid, and convenient one-step mechanochemical synthesis, after 5 and 10 min of milling in a planetary, and an industrial vibratory, mill. The kinetics of the synthesis, and the structural, morphological, optical, and electrical properties of CuSe products prepared in the two types of mill were studied. Their crystal structure, physical properties, and morphology were characterized by X-ray diffraction, specific surface area measurements, particle size distribution, scanning, and transmission electron microscopy. The products crystallized in a hexagonal crystal structure. However, a small amount of orthorhombic phase was also identified. The scanning electron microscopy revealed that both products consist of agglomerated particles of irregular shape, forming clusters with a size ~50 μm. Transmission electron microscopy proved the nanocrystalline character of the CuSe particles. The optical properties were studied using UV–Vis and photoluminescence spectroscopy. The determined band gap energies of 1.6 and 1.8 eV for the planetary- and vibratory-milled product, respectively, were blue-shifted relative to the bulk CuSe. CuSe prepared in the vibratory mill had lower resistivity and higher conductivity, which corresponds to its larger crystallite size in comparison with CuSe prepared in the planetary mill. |
format | Online Article Text |
id | pubmed-7602807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-76028072020-11-01 Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill Achimovičová, Marcela Baláž, Matej Girman, Vladimír Kurimský, Juraj Briančin, Jaroslav Dutková, Erika Gáborová, Katarína Nanomaterials (Basel) Article Copper(II) selenide, CuSe was prepared from Cu and Se powders in a stoichiometric ratio by a rapid, and convenient one-step mechanochemical synthesis, after 5 and 10 min of milling in a planetary, and an industrial vibratory, mill. The kinetics of the synthesis, and the structural, morphological, optical, and electrical properties of CuSe products prepared in the two types of mill were studied. Their crystal structure, physical properties, and morphology were characterized by X-ray diffraction, specific surface area measurements, particle size distribution, scanning, and transmission electron microscopy. The products crystallized in a hexagonal crystal structure. However, a small amount of orthorhombic phase was also identified. The scanning electron microscopy revealed that both products consist of agglomerated particles of irregular shape, forming clusters with a size ~50 μm. Transmission electron microscopy proved the nanocrystalline character of the CuSe particles. The optical properties were studied using UV–Vis and photoluminescence spectroscopy. The determined band gap energies of 1.6 and 1.8 eV for the planetary- and vibratory-milled product, respectively, were blue-shifted relative to the bulk CuSe. CuSe prepared in the vibratory mill had lower resistivity and higher conductivity, which corresponds to its larger crystallite size in comparison with CuSe prepared in the planetary mill. MDPI 2020-10-15 /pmc/articles/PMC7602807/ /pubmed/33076574 http://dx.doi.org/10.3390/nano10102038 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Achimovičová, Marcela Baláž, Matej Girman, Vladimír Kurimský, Juraj Briančin, Jaroslav Dutková, Erika Gáborová, Katarína Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill |
title | Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill |
title_full | Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill |
title_fullStr | Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill |
title_full_unstemmed | Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill |
title_short | Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill |
title_sort | comparative study of nanostructured cuse semiconductor synthesized in a planetary and vibratory mill |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7602807/ https://www.ncbi.nlm.nih.gov/pubmed/33076574 http://dx.doi.org/10.3390/nano10102038 |
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