Abstract—

We have investigated phase relations along a number of joins in the subsolidus region of the К₂MoO₄–BaMoO₄–Y₂(MoO₄)₃ system using X-ray diffraction and differential thermal analysis and constructed its phase compatibility diagram. A triple molybdate with the composition KBaY(MoO₄)₃ and a monoclinic scheelite-like structure (sp. gr. P2₁/n) has been synthesized. Codoping KBaY(MoO₄)₃ with Er³⁺/Yb³⁺ ions, we have obtained an upconversion phosphor exhibiting anti-Stokes luminescence in the range 400–700 nm under IR excitation (λ_ex = 977 nm). The synthesized phosphor has been characterized by X-ray diffraction, differential thermal analysis, and vibrational spectroscopy.

中文翻译：

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KBаY(MoO4)3:Er3+/Yb3+——在 К2MoO4–BaMoO4–Y2(MoO4)3 系统中的铒/镱共掺杂上转换磷光体

摘要-

我们已经使用 X 射线衍射和差热分析研究了 К ₂ MoO ₄ –BaMoO ₄ –Y ₂ (MoO ₄ ) ₃系统的亚固相线区域中许多连接处的相关系，并构建了其相相容性图。已经合成了具有 KBaY(MoO ₄ ) _{3 组成}和单斜白钨样结构 (sp. gr. P 2 ₁ / n )的三重钼酸盐。与 Er ³⁺ /Yb ³⁺共掺杂 KBaY(MoO ₄ ) ₃离子，我们已经获得了一种上转换磷光体，在 IR 激发下（λ _ex = 977 nm）在 400-700 nm 范围内显示出反斯托克斯发光。合成的荧光粉已通过 X 射线衍射、差热分析和振动光谱表征。