This article is cited in 5 papers

Optical properties

Thermal expansion and luminescent properties of triorthogermanates CaLa$_{2-x}$Eu$_{x}$Ge$_{3}$O$_{10}$ ($x$ = 0.0–0.6)

O. A. Lipina, L. L. Surat, Ya. V. Baklanova, I. F. Berger, A. P. Tyutyunnik, V. G. Zubkov

Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: Solid solutions CaLa$_{2-x}$Eu$_{x}$Ge$_{3}$O$_{10}$ ($x$ = 0.0–0.6, $\Delta x$ = 0.1) have been synthesized for the first time. The compounds are isostructural to CaLa$_{2}$Ge$_{3}$O$_{10}$, they crystallize in the monoclinic system, space group $P 2_1/c$, $Z$ = 4. The low-temperature X-ray diffraction studies have revealed the strain anisotropy of germanate CaLa$_{2}$Ge$_{3}$O$_{10}$ crystal lattice in the temperature range 80–298 K, and the linear thermal expansion coefficients have been calculated. The optical properties of the activated phases have been studied, and the influence of the dopant concentration and the excitation wavelength on the luminescence characteristics of the synthesized compounds has been established.

Received: 08.08.2017

DOI: 10.21883/FTT.2018.02.45394.245

 English version: Physics of the Solid State, 2018, 60:2, 370–375

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