Tunable color emission in K3Gd(PO4)2:Tb3+,Sm3+ phosphor for n-UV white light emitting diodes

被引：5

作者：

王婷 ^{[1
]}

徐旭辉 ^{[1
,2
]}

周大成 ^{[1
,2
]}

邱建备 ^{[1
,2
]}

余雪 ^{[1
]}

机构：

[1] College of Materials Science and Engineering, Kunming University of Science and Technology

[2] Key Laboratory of Advanced Materials of Yunnan Province

来源：

JournalofRareEarths | 2015年 / 33卷 / 04期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

phosphors; energy transfer; luminescence; tunable colors; rare earths;

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

A series of K3Gd(PO4)2:Tb3+,Sm3+ phosphors were synthesized through solid state reaction. By co-doping Tb3+ and Sm3+into K3Gd(PO4)2 host and singly varying the doping concentration of Sm3+, tunable colors from green to yellow and then to orange were obtained in K3Gd(PO4)2:Tb3+,Sm3+ phosphors under the excitation at 373 nm. The energy transfer process from Tb3+ to Sm3+ was verified through luminescence spectra and fluorescence decay curves. Moreover, the energy transfer mechanism was demonstrated to be the quadrupole-quadrupole interaction. The results indicated that K3Gd(PO4)2:Tb3+,Sm3+ phosphors could be a potential application for n-UV white light emitting diodes.

引用

页码：361 / 365

页数：5

共 6 条

[1] Photoluminescent properties of tunable green-emitting oxynitride(Ba3-xSrx)Si6O12N2:Eu2+ phosphor and its application in white LEDs
陈观通
庄卫东
刘荣辉
刘元红
胡运生
何华强
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