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采用共沉淀法制备了Bi3+掺杂的GdVO4:Tm3+荧光粉材料。采用X射线衍射仪(XRD)、扫描电镜(SEM)、荧光光谱仪(PL)对所得荧光粉的晶体结构,颗粒形貌以及发光特性进行了分析。结果表明:Bi3+的掺入不改变GdVO4相的晶体结构,所得的Gd0.99-xVO4:Tm0.013+,Bix3+荧光粉的相结构仍为四方锆型结构。荧光粉体的形貌呈现尺度较均匀的颗粒状,颗粒尺寸约为70 nm。Bi3+的掺入增强了Gd0.99-xVO4:Tm0.013+,Bix3+荧光粉的发光强度,当Bi3+/Tm3+为0.5时,发光强度在波长为476 nm处达到最大值,显示为明亮的篮光。
Bi3 + doped GdVO4: Tm3 + phosphors were prepared by coprecipitation method. The crystal structure, particle morphology and luminescence properties of the obtained phosphor were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence spectroscopy (PL). The results show that the crystal structure of GdVO4 phase is not changed by Bi3 + doping. The phase structure of Gd0.99-xVO4: Tm0.013 + and Bix3 + phosphors is still tetragonal zirconium structure. The morphology of the phosphor showed a more uniform size of the particles, the particle size of about 70 nm. The incorporation of Bi3 + enhanced the luminescence intensity of Gd0.99-xVO4: Tm0.013 +, Bix3 + phosphors. When the ratio of Bi3 + / Tm3 + was 0.5, the luminescence intensity reached its maximum at 476 nm, .