Optical materials

Sensitization of europium (Eu$^{3+}$) ions by terbium (Tb$^{3+}$) in ceramics based on yttrium stabilized cubic zirconium dioxide

A. A. Shakirova^a, G. A. Gusev^a, E. V. Dementevа^a, A. A. Averin^b, T. B. Popova^a, M. V. Zamoryanskaya<sup>a

a</sup> Ioffe Institute, 194021 St. Petersburg, Russia
^b Institute of Physical Chemistry and Electro Chemistry, Russian Academy of Sciences, Moscow

Abstract: In this work, stabilized $f$-ZrO$_2$ ceramic samples with the compositions of (Zr$_{0.82}$Y$_{0.09}$Eu$_{0.09}$)O$_{1.91}$, (Zr$_{0.82}$Y$_{0.09}$Tb$_{0.09}$)O$_{1.91}$ and (Zr$_{0.82}$Y$_{0.09}$Eu$_{0.045}$Tb$_{0.045}$)O$_{1.91}$ were studied. The elemental composition was studied by electron probe microanalysis, and the luminescent properties were studied by local cathodoluminescence (CL). An analysis of the Eu$^{3+}$ CL spectra confirmed the stabilization of the cubic phase in ceramics at room temperature. The study of the obtained CL spectra, the $^5D_4$–$^7F_5$Tb$^{3+}$ band luminescence decay kinetics, CL images and excitation spectra showed europium sensitization by terbium in (Zr$_{0.82}$Y$_{0.09}$Eu$_{0.045}$Tb$_{0.045}$)O$_{1.91}$.

Keywords: $f$-ZrO$_2$, Eu$^{3+}$, Tb$^{3+}$, Ceramics, Sensitization, Cathodoluminescence.

Received: 07.05.2022
Revised: 06.06.2022
Accepted: 07.06.2022

DOI: 10.21883/OS.2022.10.53629.3655-22

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