In this work, a group of NaBi(MoO₄)₂ phosphors doped with various Sm³⁺ concentrations were prepared utilizing the solid state reaction. The crystalline phases were identified by the implement of XRD as well as Rietveld refinement, and the relevant data of the optimum sample turn out to be a = b = 5.245 Å, c = 11.563 Å, R_p = 7.66%, R_wp = 9.64% and χ² = 1.512. Upon the irradiation of 406 nm, all the phosphors exhibited orange-red light emission with the primary peak at 599 nm. Furthermore, the optimal doping concentration of Sm³⁺ ion was determined as 0.08 mol, and the mechanism of energy transfer between two adjacent Sm³⁺ ions was dominated by the dipole-dipole interaction. The possible lattice sites occupied by Sm³⁺ ions were investigated via the fitting function type of decay curves. The calculated CIE chromaticity coordinate of NaBi(MoO₄)₂: 0.08Sm³⁺ phosphor verified that its emission light was located in the orange-red region. The aforementioned results demonstrated that the NaBi(MoO₄)₂: Sm³⁺ phosphors could be used in the area of NUV-excited white light emitting diodes.

在这项工作中，利用固态反应制备了一组掺杂有各种 Sm ³⁺浓度的 NaBi(MoO ₄ ) ₂荧光粉。通过XRD和Rietveld精修确定晶相，最佳样品的相关数据为a = b = 5.245 Å, c = 11.563 Å, R _p  = 7.66%, R _wp  = 9.64 ％和χ ²  = 1.512。在 406 nm 的照射下，所有荧光粉都呈现橙红色发光，主峰位于 599 nm。进一步确定了 Sm ³⁺离子的最佳掺杂浓度为 0.08 mol，两个相邻 Sm ³⁺之间的能量转移机制离子以偶极-偶极相互作用为主。通过衰减曲线的拟合函数类型研究了Sm ³⁺离子可能占据的晶格位点。NaBi(MoO ₄ ) ₂ : 0.08Sm ³⁺磷光体的计算CIE色度坐标证实其发射光位于橙红色区域。上述结果表明，NaBi(MoO ₄ ) ₂ : Sm ³⁺磷光体可用于NUV激发的白光发光二极管领域。