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通过改变紫外线辐照能量，研究了ＢａＦＣｌ：Ｅｕ（２＋）的光激励发光性质．发现当紫外线能量大于或小于Ｅｕ（２＋）最低激发态能量两种情况下，光激励发光有明显的差异，还分析了产生差异的原因，并且给出了紫外线辐照能量与Ｆ／Ｃｌ比值的关系．
By changing the energy of ultraviolet radiation, the photoluminescence properties of BaFCl: Eu (2+) were studied. It is found that there is a significant difference in the photo-induced luminescence when the UV energy is greater than or less than the Eu (2+) minimum excited state energy. The reason for the difference is also analyzed, and the relationship between the UV energy and F / Cl ratio relationship.