萤石:Eu^(2+)的发光及微结构  

LUMINESCENCE AND MICROSTRUCTURE OF FLUORITE:Eu^(2+)

作　　者：于立新[1] 曹林[2] 李殿超[1] 吴长峰[1] 张东丽[1] 王秀平[1] 

机构地区：[1]吉林大学材料科学与工程学院,吉林长春130026 [2]北京科技大学材料物理系,北京100083

出　　处：《长春科技大学学报》2001年第1期37-39,共3页Journal of Changchun University of Science and Technology

基　　金：国家自然科学基金资助项目 !( 49770 99)

摘　　要：萤石掺杂Eu在还原气氛下灼烧可制备出发蓝色荧光的萤石 :Eu2 +晶体 ,该体系的发光为5d→ 4f跃迁发射。在萤石 :Eu2 +体系中对称程度较高的 [0 11]方向发现Eu或F点缺陷 ,但其对发光体整体发光影响不大 ;对发光有重要作用的是对称性较低的 [ l12 ]、[0 13]方向的Eu2 +及F晶簇。Eu2The crystals of fluorite:Eu 2+ that can emit blue fluorescence can be made by sintering with fluorite doped Eu in reducing atmosphere.Eu and F i point-defects can be found in [011]direction of high symmetry in fluorite:Eu 2+ crystals. In general they have little affect on luminescent object . Partially gathering crystal-cluster of Eu and F i in [1-12][013]direction of low symmetry have important affect on luminescence.Boundary between crystal-cluster of Eu 2+ and matrix can produce energy level of localized region.

关 键 词：萤石 发光 微结构 还原气氮 铕离子 发光材料 能级 

分 类 号：TB39[一般工业技术—材料科学与工程]