The present work demonstrates the structural and luminescence properties of Dy³⁺-doped La₂(MoO₄)₃ phosphor samples. X-ray diffraction (XRD) analysis revealed the phase purity, crystal structure and crystallite sizes of the prepared phosphors. Furthermore, the photoluminescence emission spectra of the synthesized phosphor materials were monitored under excitation with 387 nm and the prominent emission bands noticed at 482 nm (blue), 574 nm (yellow) and 664 nm (red) corresponding to the ⁴F_9/2 → ⁶H_J (J = 15/2, 13/2 and 11/2) electronic transitions of Dy³⁺ ions. In addition, the influence of doped Dy³⁺ content on photoluminescence characteristics of the host material has been examined also the mean decay lifetimes were studied for the prepared Dy³⁺: La₂(MoO₄)₃ phosphors. The chromaticity co-ordinates of all the synthesized phosphors were pointed in white light region. Hence, all the outcomes suggest that, as prepared single phased monoclinic Dy³⁺: La₂(MoO₄)₃ phosphors is well suitable for white light-emitting diodes.

目前的工作证明了 Dy ³⁺掺杂的 La ₂ (MoO ₄ ) ₃ 荧光粉样品的结构和发光特性。X射线衍射（XRD）分析揭示了制备的磷光体的相纯度、晶体结构和微晶尺寸。此外，合成磷光体材料的光致发光发射光谱在 387 nm 激发下进行监测，在 482 nm（蓝色）、574 nm（黄色）和 664 nm（红色）处观察到突出的发射带，对应于 ⁴ F _9/2  →  ⁶ H _J  ( J  = 15/2, 13/2 and 11/2) Dy ^{3+ 的}电子跃迁 离子。此外，还研究了掺杂的 Dy ³⁺含量对主体材料光致发光特性的影响，还研究了制备的 Dy ³⁺ : La ₂ (MoO ₄ ) ₃ 磷光体的平均衰变寿命。所有合成荧光粉的色度坐标都指向白光区域。因此，所有结果表明，所制备的单相单斜Dy ³⁺ :La ₂ (MoO ₄ ) ₃荧光粉非常适用于白光发光二极管。