A comparison of Ce^(3+) luminescence in X_2Z(BO_3)_2(X=Ba,Sr;Z=Ca,Mg) with relevant composition and structure  

作　　者：林惠红 梁宏斌 张国斌 陶冶 

机构地区：[1]Department of Chemistry,Hanshan Normal University [2]MOE Laboratory of Bioinorganic and Synthetic Chemistry,State Key Laboratory of Optoelectronic Materials and Technologies,School of Chemistry and Chemical Engineering,Sun Yat-sen University [3]National Synchro-tron Radiation Laboratory,University of Science and Technology of China [4]Beijing Synchrotron Radiation Facilities,Institute for High Energy Physics

出　　处：《Journal of Rare Earths》2012年第1期1-5,共5页稀土学报（英文版）

基　　金：Project supported by National Natural Science Foundation of China (20871121);the Science Foundation for Young Scholar of Hanshan Normal University (LQ201001);the Scientific Research Fund for Doctoral Start-up Project of Hanshan Normal University

摘　　要：The VUV-UV spectroscopic properties of Ce3＋ in Ba2Mg（BO3）2,Ba2Ca（BO3）2 and Sr2Mg（BO3）2 were compared,and the relation between the energy of the 4f→5d transition of Ce3＋ and the coordination environments of substituted alkaline earth ions was discussed.The chromaticity coordinates of Ce3＋ activated X2Z（BO3）2（X=Ba,Sr;Z=Ca,Mg） phosphors were changeable from blue to whitish and further to green range by varying the doping concentration of Ce3＋ or the types of substituted alkaline earth ions upon 172 nm excitation.The VUV-UV spectroscopic properties of Ce3＋ in Ba2Mg（BO3）2,Ba2Ca（BO3）2 and Sr2Mg（BO3）2 were compared,and the relation between the energy of the 4f→5d transition of Ce3＋ and the coordination environments of substituted alkaline earth ions was discussed.The chromaticity coordinates of Ce3＋ activated X2Z（BO3）2（X=Ba,Sr;Z=Ca,Mg） phosphors were changeable from blue to whitish and further to green range by varying the doping concentration of Ce3＋ or the types of substituted alkaline earth ions upon 172 nm excitation.

关 键 词：LUMINESCENCE Ce3＋ Sr2Mg（BO3）2 Ba2Mg（BO3）2 Ba2Ca（BO3）2 rare earths 

分 类 号：O614.332[理学—无机化学]