通过高温固相方法合成了红色荧光粉Ca3 Y2 Si3 O12∶Pr3+,研究了Pr3+掺杂浓度及助熔剂对荧光粉发光性能的影响.结果显示,所合成的荧光粉的主晶相为Ca3 Y2 Si3O12.通过分析荧光光谱,发现Ca3 Y2 Si3 O12∶Pr3+硅酸盐荧光粉的有效激发范围可以在430～ 490 nm范围内,并发射红光.在445 nm激发下,样品发射光谱中的主发射峰分别位于610 nm(3P0→3 H6)和644 nm(3 P0→3 F2),其中610 nm处峰值最大.通过改变Pr3+掺杂浓度,发现荧光粉发光强度先增大后减小,最佳Pr3+掺杂量x(Pr3+)为2.0％,超过最佳掺杂浓度表现为由离子间的相互作用导致的浓度淬灭.该荧光粉色温为2261℃.通过观察助熔剂的助熔效果,发现最佳的助熔剂H3BO3添加量为2.0％.
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