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在CTAB/正丁醇/正庚烷/水微乳液体系,采用氟化铵和氯化钡为原料制备了纳米氟化钡和掺杂稀土的纳米BaF2:Ce3+材料。经SEM表征,BaF2和BaF2:Ce3+均为均匀的球形纳米粒子,粒径39 nm左右。XRD表征掺杂Ce3+后没有显著改变BaF2晶体的结构。荧光光谱分析,BaF2:Ce3+纳米粒子产生了300 nm～400 nm的宽带发射谱,峰值352 nm,半峰宽约60 nm。BaF2:Ce3+纳米粒子激发带在180 nm～320 nm之间,峰值285 nm。
In the CTAB / n-butanol / n-heptane / water microemulsion system, nanometer barium fluoride and rare earth doped nano-BaF2: Ce3 + materials were prepared by using ammonium fluoride and barium chloride as raw materials. The SEM showed that BaF2 and BaF2: Ce3 + were uniform spherical nanoparticles with particle size of about 39 nm. XRD characterization of doped Ce3 + did not significantly change the structure of BaF2 crystals. Fluorescence spectrum analysis showed that the BaF2: Ce3 + nanoparticles produced a broadband emission spectrum of 300 nm ~ 400 nm with a peak of 352 nm and a half width of about 60 nm. BaF2: Ce3 + nanoparticle excitation band between 180 nm ~ 320 nm, peak 285 nm.