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采用共沉淀法制备了Gd0.95(BO3)x(VO4)1–x:Eu0.053+红色荧光粉体,利用X射线衍射仪和荧光分光光度计,较系统地研究了B3+掺杂量对荧光粉的晶体结构和发光性能的影响规律。结果表明,Gd0.95(BO3)x(VO4)1–x:Eu0.053+的晶体结构与GdVO4:Eu3+的相同,均为四方锆型。但由于B3+的半径比V5+的小,则B3+的掺杂会使荧光粉体的X射线衍射峰峰位出现稍微右移。与GdVO4:Eu3+相比,掺入适量B3+后荧光粉的发光强度显著提高,当x=0.6时,所得样品的发光强度最高,其最强的发射峰均来自Eu3+的5D0→7F2的红色光发射峰。
The red phosphor of Gd0.95 (BO3) x (VO4) 1-x: Eu0.053 + was prepared by coprecipitation method. The effects of B3 + doping amount Crystal structure and luminescent properties of phosphor. The results show that the crystal structure of Gd0.95 (BO3) x (VO4) 1-x: Eu0.053 + is the same as that of GdVO4: Eu3 +. However, due to the smaller radius of B3 + than that of V5 +, the doping of B3 + slightly shifts the X-ray diffraction peaks of phosphor. Compared with GdVO4: Eu3 +, the luminescence intensity of the phosphor increased significantly when B3 + was doped. When x = 0.6, the luminescence intensity of the obtained sample was the highest, and the strongest emission peak was from the red light emission of Eu3 + 5D0 → 7F2 peak.