采用高温固相法合成不同浓度Dy元素掺杂的以硅铝酸盐为基底的荧光材料。 通过X射线衍射物相分析可知, 其主要物相组成中含有Dy3Al2(AlO4)3。 通过拉曼光谱分析可知, 在该体系中, 874.5 cm-1处振动峰与Dy和铝氧四面体之间伸缩振动相关, 随着Dy掺杂量的增加, 其拉曼峰强度呈现先增后减的变化规律; 另外429.9 cm-1处测得的振动峰与Dy和铝氧四面体结构之间的弯曲振动相关。 随着Dy掺杂量的增加, 拉曼振动峰强度, 荧光分光光度计测得的荧光光谱以及拉曼光谱仪测得的光致发光光谱的峰强均呈现先增后减的变化规律。 该体系中Dy元素与铝氧四面体匹配数量逐渐增加, 当Dy掺杂量超过一定极限值时, 体系内发生浓度猝灭, 导致荧光性能下降。 与Tb元素掺杂相比, 两种体系材料的拉曼光谱峰形有很大的相似性, 又存在细微差异。 其中Tb元素掺杂体系材料的拉曼振动峰处于870.0和408.0 cm-1处。 两种不同元素掺杂的荧光材料其荧光强度变化规律具有一致性, 表明稀土元素与铝（硅）氧四面体匹配数量是决定材料荧光性能的关键因素。

Silicoaluminate substrates doped with Dy at different concentrations are synthesized by high temperature solid state method. X-ray diffraction phase analysis shows that one of the main phases is Dy3Al2(AlO4)3. By Raman spectroscopy analysis, the intensity of the Raman peak is at 874.5 cm-1, which is related to the stretching vibration of Dy-［AlO4］. With the increase of Dy doping content, the intensity of Raman peaks increases first and then decreases. The peak at 419.9 cm-1 is related to the bending vibration of Dy-［AlO4］. With the increase of Dy doping content, the intensity of Raman vibration peak, the peaks of fluorescence spectrum measured by fluorescence spectrophotometer and the photoluminescence spectrum measured by Raman spectrophotometer all show the rule of first increasing and then decreasing. The matching amount of Dy-［AlO4］ increases gradually, and when the amount of Dy doping exceeds a certain limit, concentration quenching occurs in the system, which results in the decrease of fluorescence properties. Compared with Tb system, the Raman spectra of the two systems have great similarities and slight differences. The Raman vibration peaks of Tb doped materials are 870.0 and 408.0 cm-1. The fluorescence intensity of two kinds of fluorescent materials doped with different elements are consistent, which indicates that the matching amount of rare earth elements with Al (Si) oxygen tetrahedron is the key factor to determine the fluorescence properties of the materials.