YAG荧光粉的制备与表征

Preparation and characterization of YAG phosphor

采用高温固相法制备了不同稀土离子(M:铽(Tb),镨(Pr))掺杂的钇铝石榴石型(Y3Al5O12(YAG))荧光粉(YAG:M),并通过XRD表征了煅烧温度和掺杂的稀土离子对晶化程度的影响,荧光发射光谱(PL)表征了不同稀土离子掺杂和掺杂浓度对荧光发射强度和荧光波长位置的影响。透射电镜(TEM)和扫描电镜(SEM)分析了不同条件下合成的荧光粉的分散性、粒径尺寸和粒形貌结构信息。

Different rare ions （M.. Tb,Pr） doped with yttrium aluminium garnet（YAG） （YAG： M） phosphor powder are synthesized with high temperature solid state method. XRD spectra is used to characterize the effects of calcination temperature and different doping agents on crystallinity of the powder; Photoluminescence spectra （PL） to describe the influence of the rare earth ions doping and doping concentration on the fluorescence emission intensity and wavelength position. Transmission electron microscope （TEM） and scanning electron microscope （SEM） to synthesize the dispersion of the phosphor, the particle size and grain morphology under different conditions.