Next Article in Journal
Recent Advances in the Development of Nano-Sculpted Films by Magnetron Sputtering for Energy-Related Applications
Next Article in Special Issue
Sustainable One-Step Solid-State Synthesis of Antibacterially Active Silver Nanoparticles Using Mechanochemistry
Previous Article in Journal
Tunable Electronic Properties of Type-II SiS2/WSe2 Hetero-Bilayers
Open AccessArticle

Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill

1
Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
2
Faculty of Science, Pavol Jozef Šafárik University, Košice, Park Angelinum 9, 04154 Košice, Slovakia
3
Faculty of Electrical Engineering and Informatics, Technical University Košice, Letná 9, 04200 Košice, Slovakia
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(10), 2038; https://doi.org/10.3390/nano10102038
Received: 26 August 2020 / Revised: 27 September 2020 / Accepted: 14 October 2020 / Published: 15 October 2020
(This article belongs to the Special Issue Mechanochemistry and Nanotechnology)
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. View Full-Text
Keywords: mechanochemical synthesis; planetary ball mill; industrial vibratory mill; nanostructured semiconductor mechanochemical synthesis; planetary ball mill; industrial vibratory mill; nanostructured semiconductor
Show Figures

Figure 1

MDPI and ACS Style

Achimovičová, M.; Baláž, M.; Girman, V.; Kurimský, J.; Briančin, J.; Dutková, E.; Gáborová, K. Comparative Study of Nanostructured CuSe Semiconductor Synthesized in a Planetary and Vibratory Mill. Nanomaterials 2020, 10, 2038.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop