Effect of Study of Phase Composition of Zirconium Dioxide Nanoparticles Deposited by Low-Pressure Arc Discharge on Photoluminescence Properties : научное издание
Библиографическое описание:Effect of Study of Phase Composition of Zirconium Dioxide Nanoparticles Deposited by Low-Pressure Arc Discharge on Photoluminescence Properties : научное издание / L. Yu. Fedorov, I. V. Karpov. - Текст : непосредственный // Inorganic Materials: Applied Research. - 2026. - Т. 17, № 1. - P. 76-81. - This study was carried out as part of state assignment FWES-2024-0026. - ISSN 2075-1133. - ISSN 2075-115X, DOI 10.1134/S2075113325702466.
Аннотация:Zirconium dioxide nanoparticles obtained by arc deposition at low pressure with variable oxygen content in the gas mixture are investigated in the study. The phase composition, structural characteristics, and chemical state of zirconium in the samples are confirmed by X-ray diffraction, X-ray photoelectron spectroscopy, and electron paramagnetic resonance. The modification of the phase composition of samples, which is accompanied by a change in photoluminescent properties, is discussed. Nanopowder of ZrO<sub>2</sub> in the tetragonal phase exhibits intense luminescence (λ<sub>max</sub> = 417 nm) when excited by light with a wavelength of 270 nm. As the phase composition of the nanoparticles changes to the prevailing monoclinic modification, the broad peak in the PL spectra is replaced by three distinct peaks at 376, 407, and 479 nm. For all samples, the nature of the radiation is related to the impurity states in the band gap. New energy levels are formed by oxygen vacancies and surface defects.
Держатель оригинала документа:Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Siberian Federal University
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