Mg^(2+)、Sr^(2+)离子掺杂对Ca_2Li_2BiV_3O_(12):Eu^(3+)发光性能的影响  

Effect of Mg^(2+),Sr^(2+) Ions Doping on the Luminescent Properties of Ca_2Li_2BiV_3O_(12):Eu^(3+)

作　　者：徐磊[1] 邱克辉[1] 权浩[1] 

机构地区：[1]成都理工大学材料科学技术研究所,四川成都610059

出　　处：《广州化工》2011年第21期54-56,共3页GuangZhou Chemical Industry

基　　金：四川省科技攻关重点项目(批准号07GG002-002)

摘　　要：采用高温固相法合成了Mg2+、Sr2+离子掺杂新型Ca2Li2BiV3 O12:Eu3+红色荧光粉体材料,研究了保温时间对Ca2 Li2 BiV3 O12:Eu3+荧光粉的影响。使用X射线衍射仪对合成样品进行物相分析,利用荧光分光光度计进行光谱分析,测试了样品的荧光光谱。样品表现为Eu3+离子的特征发射,发光强度随着保温时间的增加而逐渐增强。同时研究了Mg2+、Sr2+离子掺杂对合成荧光粉光谱对合成样品的发光性能的影响,本研究发现Mg2+离子掺杂后样品发光效果明显强于Sr2+离子掺杂后样品的发光效果。Ca2Li2BiV3O12：Eu3＋ phosphors doped with Mg2＋and Sr2＋ were fabricated by the solid-state reaction for potential application as red phosphors for solid state lighting and characterized by X-ray diffraction（XRD） and fluorescence spectrophotometer.The holding time were also studied.Results showed that holding time had a minor effect on the phase composition but improved the luminescence intensity of samples.The phosphors exhibited a broad charge transfer excitation ranging from 200 nm to 500 nm and representative emission of Eu3＋ ions,which was suitable for InGaN LEDs.The luminescent properties of Ca2Li2BiV3O12：Eu3＋ doped with Mg2＋ ions was better than the phosphor′s doped with Sr2＋ ions.

关 键 词：Ca2Li2BiV3O12:Eu3+ 保温时间 掺杂 发光性能 

分 类 号：TQ224.14[化学工程—有机化工]