微晶结构对氟氧化物玻璃陶瓷发光特性的影响  

Luminescent properties in Er-Yb-doped oxyfluoride glass ceramics with a nanocrystal line structure

作　　者：孟婕[1] 赵丽娟[1] 余华[1] 唐莉勤[1] 梁沁[1] 禹宣伊[1] 唐柏权[1] 苏静[1] 许京军[1] 

机构地区：[1]南开大学物理科学学院光子学中心

出　　处：《物理学报》2005年第3期1442-1446,共5页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :60 1780 2 4)资助的课题 .~~

摘　　要：制备了成分相同的Er3+ Yb3+ 共掺氟氧化物玻璃和氟氧化物玻璃陶瓷样品 ,x射线衍射谱和荧光光谱表明热处理后玻璃陶瓷中形成了纳米结构的微晶 ,根据Judd Ofelt理论计算和差热曲线分析 ,证实稀土离子掺入PbF2 微晶中 .分别计算了热处理前后微晶态部分在玻璃体中所占的比例 .Oxyfluoride glass and glass ceramics co-doped with Er3+/Yb3+ ions of the same composition were prepared. Nanocrystals in the glass ceramics were formed, characterized by x-ray diffraction and fluorescence spectra. The measurements by using the differential thermal analysis and the crystal parameter calculation by Judd-Ofelt theory indicated that the rare-earth ions have entered the nanocrystals. At the same time, the ratio of the nanocrystalline phases in glass and glass ceramics before and after annealing was calculated respectively.

关 键 词：氟氧化物玻璃 差热 陶瓷样品 微晶结构 Er^3+ 分相 YB^3+ X射线衍射谱 JUDD-OFELT理论 荧光光谱 

分 类 号：TQ174[化学工程—陶瓷工业]