A down-conversion luminescent material GdPO₄-Gd₃PO₇:Eu³⁺ has been synthesized by Pechini sol-gel process. The XRD patterns indicated that the obtained powders have a mixed crystalline phase. An intense luminescent red emission was obtained upon excitation 275 nm. The influence of different synthesis conditions on morphology and the PL emission ratio I(⁵D₀ → ⁷F₂)/I(⁵D₀ → ⁷F₁) was established.

中文翻译：

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溶胶-凝胶法合成红色荧光粉GdPO 4 -Gd 3 PO 7：Eu 3+：发光和形貌

通过Pechini溶胶-凝胶法合成了下转换发光材料GdPO ₄ -Gd ₃ PO ₇：Eu ³⁺。XRD图谱表明获得的粉末具有混合的结晶相。在激发275nm时获得强烈的发光红色发射。建立了不同合成条件对形态和PL发射比I（⁵ D ₀  →  ⁷ F ₂）/ I（⁵ D ₀  →  ⁷ F ₁）的影响。