为提高红色荧光粉的发光强度和色纯度,以硝酸钙、硝酸钠、硝酸铕、磷酸二氢铵、钼酸铵、硝酸钡为原料,采用高温固相法合成了NaCa_1-xPO₄：xEu³⁺、NaCa_1-x（PO₄）_1-y（MoO₄）_y：xEu³⁺、NaCa_1-x-zPO₄：xEu³⁺,zBa²⁺系列红色荧光粉。探讨了Eu³⁺单掺杂和Eu³⁺/MoO₄^2-、Eu³⁺/Ba²⁺共掺杂对荧光粉发光性能的影响。用X射线衍射（XRD）、荧光分光光度计、色坐标等对荧光粉的结构进行表征。研究结果表明：掺杂Eu³⁺、MoO₄^2-、Ba²⁺后NaCaPO₄晶系没有发生变化,但是晶胞参数发生了变化,说明Eu³⁺、MoO₄^2-、Ba²⁺进入NaCaPO₄晶格中。在393 nm紫外光激发下,荧光粉发射光谱图出现两个Eu³⁺比较强的特征发射峰,分别属于Eu³⁺的⁵D₀→⁷F₁和⁵D₀→⁷F₂跃迁。与单掺杂16%Eu³⁺荧光粉相比,共掺杂16%Eu³⁺/3%MoO₄^2-或16%Eu³⁺/6%Ba²⁺荧光粉的发射光谱中⁵D₀→⁷F₂跃迁产生的发射峰强度均高于单掺杂16%Eu³⁺荧光粉的发射峰强度,其⁵D₀→⁷F₂与⁵D₀→⁷F₁发射光强度之比（R）分别为1.76（R_Mo）和1.28（R_Ba）,都大于单掺杂16%Eu³⁺荧光粉的R_Eu（0.99）,共掺杂Eu³⁺/MoO₄^2-荧光粉的色纯度比单掺杂Eu³⁺和共掺杂Eu³⁺/Ba²⁺荧光粉的色纯度更好。

In order to enhance the luminous intensity and color purity of red phosphor,using calcium nitrate,sodium nitrate,europium nitrate,ammonium dihydrogen phosphate,ammonium molybdate and barium nitrate as raw materials,a series of red phosphors of NaCa_1-xPO₄：xEu³⁺、NaCa_1-x（PO₄）_1-y（MoO₄）_y：xEu³⁺、NaCa_1-x-zPO₄：xEu³⁺,zBa²⁺ were synthesized by high temperature solid phase method.The effect of mono-doping Eu³⁺ and co-doping Eu³⁺/MoO₄^2- and Eu³⁺/Ba²⁺ phosphors on the luminescent properties of the phosphors were investigated.The structure of the phosphors was characterized by X-ray diffraction（XRD）,fluorescence spectrophotometer and color coordinates.The results showed that the crystal system of NaCaPO₄ did not change after doping Eu³⁺,MoO₄^2- and Ba²⁺,but the crystal cell parameters changed,indicating that Eu³⁺,MoO₄^2- and Ba²⁺ entered the lattice of NaCaPO₄.Under the excitation of ultraviolet light at 393 nm,the emission spectra of phosphors showed two characteristic emission peaks of Eu³⁺,which belonged to the transition of⁵D₀→⁷F₁ and⁵D₀→⁷F₂ of Eu³⁺.Compared with the mono-do-ped Eu³⁺ phosphor of 16%,in the emission spectra of the co-doped 16%Eu³⁺/3%MoO₄^2- or 16%Eu³⁺/6%Ba²⁺ phosphor,the emission peak intensity generated by⁵D₀→⁷F₂ transition was higher than that of the mono-doped Eu³⁺ phosphor of 16%.The emission intensity ratios（R） of⁵D₀→⁷F₂ and⁵D₀→⁷F₁ were 1.76（R_Mo） and 1.28（R_Ba）,respectively,which were higher than that of mono-doped R_Eu（0.99）.The color purity of co-doped Eu³⁺/MoO₄^2- phosphor was better than that of mono-doped Eu³⁺ and co-doped Eu³⁺/Ba²⁺ phosphors.