Obtaining of luminescent material based on NaBaY(BO3)2 doped with terbium and europium ions

Zhandos Orazov, Asset Bolatov, Nadezhda G. Kononova, Vyacheslav S. Shevchenko, К. А. Кох, Bolat Uralbekov, Artem B. Kuznetsov, Aleksandr Kokh

2020

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DOI 10.15328/cb1122

Data confidence 70 medium

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Abstract

A new luminescent material based on complex borate NaBaY(BO3)2 doped with Tb3+ and Eu3+ ions was obtained by high-temperature solid-state synthesis. Using X-ray diffraction analysis it was shown that NaBaY(BO3)2:0.07Tb3+:0.1Eu3+ crystallizes in trigonal system with the space group R-3m and isotypic with the mineral buetschliit K2Ca(CO3)2. The crystal structure of the phosphor is layered, formed from [BO3] triangles, [YO6] octahedra, [BaO9] and [NaO9] polyhedra. The calculated unit cell parameters for NaBaY(BO3)2:0.07Tb3+:0.1Eu3+ are: a=5.3510(6) Å, c=17.9338(3) Å, V=444.71(2) Å3. The luminescent properties of NaBaY(BO3)2:0.07Tb3+:0.1Eu3+ were studied.