以EDTA为螯合剂,采用水热法合成了微米级单掺Pr3+,Nd3+,Sm3+,Eu3+,Er3+等的NaYF4荧光粉材料。通过XRD和SEM观察分析,得出所合成的材料分散性良好,相纯度较高,并认为EDTA在水热熟化过程中,对控制微晶的形貌有很大的作用;分别在各自对应的几个波长光激发或发射下,可观察到较强的激发峰或发射峰,对发光机制进行了初步探讨,基质晶格场的作用导致了一些发射峰的红移或蓝移。 Using EDTA as the chelating agent, NaYF4 phosphor powders doped with single-doped Pr3 +, Nd3 +, Sm3 +, Eu3 +, Er3 + and the like were synthesized by hydrothermal method. By XRD and SEM observation and analysis, the synthesized material obtained good dispersion, high phase purity, and that EDTA in hydrothermal aging process, to control the morphology of the crystallites have a great role; respectively, in their respective few Under the excitation or emission of a wavelength, a strong excitation peak or emission peak can be observed, and the mechanism of the light emission is discussed. The effect of the matrix lattice field results in red-shift or blue-shift of some emission peaks.