Luminescence Properties of ZrO2: Ti Ceramics Irradiated with Electrons and High-Energy Xe Ions
Dauletbekova A. Zvonarev S. Nikiforov S. Akilbekov A. Shtang T. Karavannova N. Akylbekova A. Ishchenko A. Akhmetova-Abdik G. Baymukhanov Z. Aralbayeva G. Baubekova G. Popov A.I.
March 2024Multidisciplinary Digital Publishing Institute (MDPI)
Materials
2024#17Issue 6
Samples of ZrO2 ceramics with different concentrations of impurity titanium ions were synthesized by mixing zirconium and titanium oxide powders in different mass ratios. The X-ray diffraction analysis was used to determine the phase composition, lattice parameters, and crystallite size of the ceramics with varying dopant concentrations. Upon irradiation of the samples with 220 MeV Xe ions to a fluence of 1010 ions/cm2, a decrease in the intensity of the pulsed cathodoluminescence band at 2.5 eV was observed. Additionally, ion irradiation resulted in the emergence of a new thermoluminescence peak at 450–650 K attributed to radiation-induced traps of charge carriers. Further analysis revealed that the thermoluminescence curves of samples irradiated with electrons and ions comprise a superposition of several elementary peaks. Notably, a complex non-monotonic dependence of cathodo- and thermoluminescence intensity on titanium concentration was observed, suggesting the influence of concentration quenching and the presence of tunneling transitions.
ceramics , electron beam , high-energy ions , pulse cathodoluminescence , scanning electron microscopy , thermoluminescence , zirconium dioxide
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Department of Technical Physics, L.N. Gumilyov Eurasian National University, Satpayev Str. 2, Astana, 010008, Kazakhstan
Institute of Physics and Technology, Ural Federal University, 19 Mira str., Yekaterinburg, 620002, Russian Federation
Institute of Solid State Physics, University of Latvia, Kengaraga str. 8, Riga, LV-1063, Latvia
Department of Technical Physics
Institute of Physics and Technology
Institute of Solid State Physics
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