荧光粉BaY2Si3O10∶ Bi3+,Eu3+经高温固相法制备并由X-ray衍射谱仪分析其物相结构.实验结果显示Bi3+共掺下BaY2 Si3O 10:Eu3+的激发光谱呈现一个有明显增强的宽电荷转移带(CTB)和系列Eu3+的f-f窄吸收峰,发射谱为Eu3+的5D0-7FJ橙-红光发射.当用285 nm紫外光激发时,Bi3+到Eu3+间存在有效的能量传递,导致Bi3+的宽带紫外发射(中心345 nm)强度减弱,而Eu3+的橙-红光发射显著增强;随着Eu3+浓度的增加,能量传递效率也随之提高.最佳Eu3+浓度为0.4摩尔百分比,此后荧光粉发射强度发生浓度猝灭.结果表明Bi3+共掺时明显改善和提升荧光粉在电荷转移带(200～350 nm)的激发效率. Bi3+到Eu3+间主要的能量传递机制是通过四极-四极相互作用实现,并且能量传递的临界作用距离是1.604 nm.
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