Solid solutions of K₃Gd(PO₄)₂:Eu containing 0.1 to 10 mole % of europium(III) were obtained by solid-phase interaction. The obtained micropowders were characterized by X-ray phase analysis, IR, and luminescence spectroscopy. It is shown that doping does not affect the symmetry of the double phosphate framework. All studied samples are characterized by intense red photoluminescence at room temperature, which is associated with the⁵D₀→⁷F_0-4 radiation transitions in Eu³⁺ ions. The absence of concentration attenuation and color characteristics of the samples indicate the prospects of using the K₃Gd_0.9Eu_0.1(PO₄)₂ compound as a red phosphor.

通过固相相互作用获得含有0.1至10摩尔％铕(III)的K ₃ Gd(PO ₄ ) ₂ :Eu的固溶体。获得的微粉通过X射线相分析、IR和发光光谱表征。结果表明，掺杂不影响双磷酸盐骨架的对称性。所有研究的样品都以室温下强烈的红色光致发光为特征，这与Eu ³⁺离子中的⁵ D ₀ → ⁷ F _0-4辐射跃迁有关。样品没有浓度衰减和颜色特征表明使用 K ₃ Gd的前景_0.9 Eu _0.1 (PO ₄ ) ₂化合物作为红色磷光体。