Li₂MoO₄:x Eu³⁺ and Li₂MoO₄:xTb³⁺ phosphors, where x = 0.5, 1, 2, 3, 5 and 7 wt%, were synthesized through a gel-combustion method. The XRD data reveals that Eu³⁺ and Tb³⁺ doped Li₂MoO₄ phosphors exhibit a Rhombohedral structure belonging to the space group R3 which matched well with the standard JCPDS files (No.012-0763). We present photoluminescence (PL) spectra from Eu and Tb doped Li₂MoO₄ under 349 nm Nd:YLF pulses laser excitation over the temperature range of 10–300 K. Undoped Li₂MoO₄ shows a wide broad band around 600 nm because of the intrinsic PL emission of tetrahedral of $Mo{O}_4^{2-}$ which was in good agreement with previous findings. Under the excitation of 394 nm, the as-synthesized phosphors exhibited sharp and strong intensity PL emission signals in the red (612 nm, ⁵D₀→⁷F₂ transition) and green (544 nm, ⁵D₄→⁷F₅ transition), respectively. The critical doping concentration of Eu³⁺ and Tb³⁺ ions in the Li₂MoO₄ were estimated to be 2 wt%. The concentration quenching phenomena were discussed, and the critical distances for energy transfer have also been evaluated by the concentration quenching.

Li ₂ MoO ₄ :x Eu ³⁺和Li ₂ MoO ₄ :xTb ³⁺磷光体，其中x=0.5、1、2、3、5和7wt%，通过凝胶燃烧法合成。XRD 数据显示，Eu ³⁺和Tb ³⁺掺杂的Li ₂ MoO ₄磷光体表现出属于空间群R3的菱面体结构，其与标准JCPDS文件（No.012-0763）匹配良好。我们展示了 Eu 和 Tb 掺杂的 Li ₂ MoO ₄在 349 nm Nd:YLF 脉冲激光激发下在 10–300 K 温度范围内的光致发光 (PL) 光谱。未掺杂的 Li ₂ MoO ₄ 由于四面体的本征 PL 发射，在 600 nm 附近显示出宽的宽带 $米○{哦}_4^{2-}$这与之前的研究结果非常吻合。在 394 nm 的激发下，合成的荧光粉在红色（612 nm，⁵ D ₀ → ⁷ F ₂跃迁）和绿色（544 nm，⁵ D ₄ → ⁷ F ₅跃迁）中表现出尖锐而强烈的 PL 发射信号）， 分别。Li ₂ MoO ₄中Eu ³⁺和Tb ³⁺离子的临界掺杂浓度估计为2wt%。讨论了浓度猝灭现象，并通过浓度猝灭评估了能量转移的临界距离。