In this paper, we reported on multicolor emission tuning in Tb³⁺ and Eu³⁺ co-doped CaGd₂(WO₄)₄ phosphors prepared by a traditional high-temperature solid-state reaction. Upon 380 nm ultraviolet excitation, the emission color of CaGd₂(WO₄)₄:Tb³⁺,Eu³⁺ phosphors can be readily tuned from green to yellow, orange and finally to pure red through varying the concentration ratio of Eu³⁺ and Tb³⁺ ions. The energy transfer mechanism from Tb³⁺ to Eu³⁺ was systematically investigated by photoluminescence spectra, luminescence decay times, and time-resolved spectra. The internal quantum efficiencies of these phosphors were measured, and their thermal stability was also studied. A prototype white light-emitting diode (LED) device was fabricated by using an ultraviolet chip combined with a blend of blue-emitting BaMgAl₁₀O_l7:Eu²⁺ phosphors, green-emitting BaSrSiO₄:Eu²⁺ phosphors, and red-emitting CaGd₂(WO₄)₄:50%Tb³⁺,50%Eu³⁺ phosphors. All the results indicate that the CaGd₂(WO₄)₄:Tb³⁺,Eu³⁺ has great potential application in lighting and displays.

在本文中，我们报道了通过传统的高温固态反应制备的Tb ³⁺和Eu ³⁺共掺杂的CaGd ₂（WO ₄）₄荧光粉的多色发射调谐。在380 nm紫外线激发下，通过改变Eu ³⁺的浓度比，可以轻松地将CaGd ₂（WO ₄）₄：Tb ³⁺，Eu ³⁺荧光粉的发射颜色从绿色调至黄色，橙色，最后变为纯红色。和Tb ³⁺离子。从Tb ³⁺到Eu ³⁺的能量转移机理通过光致发光光谱，发光衰减时间和时间分辨光谱系统地进行了研究。测量了这些磷光体的内部量子效率，并研究了它们的热稳定性。通过使用紫外线芯片与发蓝光的BaMgAl ₁₀ O ₁₇：Eu ²⁺荧光粉，发绿光的BaSrSiO ₄：Eu ²⁺荧光粉和红光的混合物制成的原型白光发光二极管（LED）器件。发射CaGd ₂（WO ₄）₄：50％Tb ³⁺，50％Eu ³⁺荧光粉。所有结果表明，CaGd ₂（WO ₄）₄：Tb ³⁺，Eu ³⁺在照明和显示器方面具有巨大的潜力。