Novel Emitting-Color Tunable Phosphors Ba3Y2(BO3)4:Ce3+,Tb3+ with Efficient Energy Transfer for Near-UV Light-Emitting Diodes

被引：38
|
作者：
Han, Bing [1 ]
Zhang, Jie [1 ]
Lu, Yinhua [1 ]
机构：
[1] Zhengzhou Univ Light Ind, Sch Mat & Chem Engn, Zhengzhou 450002, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2013年 / 96卷 / 01期
关键词：
TB3+; EMISSION; CE3+; EXCITATION; CRYSTAL; FIELD; LA; GD; LN;
D O I：
10.1111/j.1551-2916.2012.05464.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work presents the ultravioletvisible spectroscopic properties of Ba3Y2(BO3)4:Ce3+,Tb3+ phosphors prepared by a high-temperature solid-state reaction. Under ultraviolet light excitation, tunable emission from the blue to yellowish-green region was obtained by changing the doping concentration of Tb3+ when the content of Ce3+ is fixed. The efficient energy transfer process between Ce3+ and Tb3+ ions was observed and confirmed in terms of corresponding excitation and emission spectra. In addition, the energy transfer mechanism between Ce3+ and Tb3+ was proved to be dipoledipole interaction in Ba3Y2(BO3)4:Ce3+,Tb3+ phosphor. By utilizing the principle of energy transfer and appropriate tuning of Ce3+/Tb3+ contents, Ba3Y(BO3)4:Ce3+,Tb3+ phosphors can have potential application as an UV-convertible phosphor for near-UV excited white light-emitting diodes.
引用
收藏
页码：179 / 183
页数：5
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