Abstract

We studied the optical spectra of fluorinated yttrium–aluminum compositions activated by Eu³⁺ ions. The compositions were synthesized by thermal decomposition at 800°C of fluorine-containing complexes of yttrium, europium, and aluminum nitrate, isolated as sols from ethyl acetate (EA). The main phases of the compositions are (Y_1 – xEu_x)OF and (Y_1 – xEu_x)AlO₃. Photoluminescence is associated with ⁵D_1, 2 → ⁷F_0, 1, 2 and ⁵D₀ → ⁷F_{0, 1, 2, 3, 4} electronic transitions of 4f electrons of Eu³⁺ ions replacing yttrium ions in oxide and oxyfluoride. The dependences of luminescence on the composition and synthesis conditions of the compositions, the wavelength of the excitation radiation, and other factors are found.

中文翻译：

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氟化钇铝组合物基质中Eu 3+离子的发光

摘要

我们研究了由Eu ³⁺离子活化的氟化钇铝复合物的光谱。通过在800℃下热分解钇，euro和硝酸铝的含氟络合物合成组合物，这些溶胶是从乙酸乙酯（EA）中以溶胶形式分离的。组成的主要相是（Y _{1 –  x} Eu _x）OF和（Y _{1 –  x} Eu _x）AlO ₃。光致发光与⁵ D _1、2 → ⁷ F _0、1、2和⁵ D ₀ → ⁷ F _{0、1、2、3、4相关}Eu ³⁺离子的4 f电子的电子跃迁替代了氧化物和氟氧化物中的钇离子。发现了发光对组成和组成的合成条件，激发辐射的波长以及其他因素的依赖性。