铝硅酸盐掺杂稀土蓝色长余辉发光材料的研究  

Blue Aluminium Silicate Long Afterglow Phosphor Doped with Rare Earth

作　　者：邓伟东[1] 倪海勇[1] 肖方明[1] 

机构地区：[1]广州有色金属研究院,广东广州510651

出　　处：《稀土》2009年第2期15-19,共5页Chinese Rare Earths

基　　金：广州市科技攻关重点项目资助(2007Z2-D0181)

摘　　要：研究了掺Si的Sr4Al14O25∶Eu,Dy体系晶体结构,光谱特性以及热释发光曲线。结果表明,Sr3.92Al13.95Si0.05O25∶Eu0.042+,Dy0.043+能级陷阱为-0.667eV,掺硅后有利于提高该长余辉材料的初始发光亮度。其次,通过调整Eu2+浓度,实现荧光粉的y色坐标从0.211到0.295变化可调。Tne crystal structure, luminescence properties and thermoluminescence of long afterglow phosphor Sr4Al14O25∶Eu,Dy^3＋ doped with Si were studied, results show that energy trap of phosphor Sr3.92Al13.95Si0.05O25∶Eu0.04^2＋,Dy0.04^3＋ is - 0.667eV, which is benefit to enlighten initial luminous intensity of phosphor. Secondly, the chromaticity coordinates y can be vary from 0.211 to 0.295 by adjusting Eu^2＋ concentration.

关 键 词：铝硅酸盐 长余辉 稀土 热释发光曲线 蓝色 

分 类 号：O614.33[理学—无机化学] O482.3[理学—化学]