SrWO_4:Eu,Tb发光材料的结构表征与发光性能  

Structure Characterization and Luminescence Property of Luminescent Material SrWO_4:Eu,Tb

作　　者：霍涌前[1] 陈小利[1] 杨庆萍 孙涛 石斌龙[1] 程蝉[1] 

机构地区：[1]延安大学化学与化工学院,陕西省延安市杨家岭716000 [2]宁波美诺华药业有限公司,浙江省宁波市高新区315812 [3]内蒙古君正能源化工股份有限公司,内蒙古乌海市乌达工业园区016040

出　　处：《光谱实验室》2013年第2期969-971,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：延安大学教学改革项目(YDJG11-07)

摘　　要：采用液相沉淀法合成了SrWO_4:Eu,Tb发光材料,XRD衍射测试结果表明,合成材料均具有四方晶系结构。荧光光谱检测表明,在254nm紫外光激发下,SrWO_4:0.05Eu的发射光谱出现Eu^(3+)的~5D_0→~7F_1(598nm)、~5D_0→~7F_2(618nm)跃迁发光峰,SrWO_4:0.05Eu,0.05Tb的发射光谱只出现Eu^(3+)的发光峰,说明存在Tb^(3+),Eu^(3+)离子间的能量传递现象,Tb^(3+)离子的共掺杂能够显著提高Eu^(3+)离子的发光性能。The SrWO4：Eu,Tb powders were synthesized by liquid phase precipitation method. The XRD analysis confirmed that the samples exhibited a body-centered tetragonal crystal structure. From the measured fluorescence spectra of SrWO4：0.05Eu phosphors,the transition peaks ^5D0→^7F1 （598nm） and ^5D0→^7F2 （618nm） of Eu^3＋ have been observed under the excitation wavelength of 254nm. The luminescence properties of Eu^3＋ ions in SrWO4： 0. 05Eu, 0. 05Tb could be evidently improved by co-doping of Tb^3＋ ions,which was due to the efficient energy transfer process from Tb^3＋ ions to Eu^3＋ ions.

关 键 词：钨酸锶 发光性能 铕掺杂 铽掺杂 

分 类 号：O614.23[理学—无机化学]