Tb3＋掺杂PbF2基氟氧微晶玻璃的发光性能  

Luminescence Properties of Tb^(3+) Doped PbF_2 Based Oxyfluoride Glass Ceramics

作　　者：商珊珊[1,2] 张国庆[2] 吴云涛 孙丹丹[2] 舒康颖[1] 任国浩[2] 

机构地区：[1]中国计量学院材料科学与工程学院.浙江杭州310018 [2]中国科学院上海硅酸盐研究所,上海201800

出　　处：《发光学报》2013年第4期444-449,共6页Chinese Journal of Luminescence

基　　金：国家自然科学基金(91022028,51102254)资助项目

摘　　要：采用高温熔融法和热处理工艺制备出一种Tb3+掺杂的PbF2基玻璃和微晶玻璃。经XRD分析发现,微晶玻璃内析出了PbF2颗粒,微晶团聚体平均尺寸约为15～75μm。在378 nm紫外光和X射线激发下,掺Tb3+的微晶玻璃与未经热处理的玻璃样品比较,微晶玻璃的发光强度增加了数倍,因而提出PbF2微晶的析出是微晶玻璃发光增强的主要原因。The transparent glass-ceramics containing PbF2 microcrystals were prepared by high tem- perature melting-quenching and thermal treatment method. X-ray diffraction pattern proved that the crystallites in the glass-ceramic are β-PbF2 microcrystal particles. The average size of the microcrys- tals is about 15 ~ 75 μm. Both X-ray fluorescence and photoluminescence intensity in the glass ce- ramics increase significantly compared with the as-made glass. The influence of crystallization on the luminescence intensity of glass ceramics is discussed.

关 键 词：PbF2微晶 微晶玻璃 光致发光 X射线激发发射 

分 类 号：TQ171[化学工程—玻璃工业]