以无水乙醇为反应溶液,采用室温共沉淀制备了低温单斜相BiPO4∶Tb3+绿色荧光纳米材料,并进行高温烧结处理.利用X-射线衍射(XRD)、透射电镜(TEM)和荧光光谱分别对所得样品的相结构、形貌以及发光性能进行研究.结果表明:通过高温烧结,样品没有发生晶型转变,仍然保持单斜相结构和纳米颗粒形貌.同时,Tb3+离子作为绿色发光中心进入到BiPO4的晶格中取代Bi3+的格位,在370nm激发下,观察到Tb3+离子的特征跃迁(5D4 →7 FJ,J=6～3),其中以5D4→7F5跃迁发射(543nm)为主;并考察了BiPO4∶Tb3+纳米晶发光强度随Tb3+掺杂量的变化关系,发现其淬灭浓度高达20mol％.
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