Effects of RE3+ (RE = La, Ce, Pr, Sm, Dy, Ho, Er, and Tm) on the luminescence of Sr2MgSiO5:Eu2+ phosphors

被引：8
|
作者：
Cheng Guang [1 ]
Wei Xiaoyan [1 ]
Cheng Liqun [1 ]
Liu Quansheng [1 ]
Wang Xiaochun [1 ]
Sun Haiying [1 ]
Zhang Xiyan [1 ]
Qiu Guanming [1 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Mat Sci & Engn, Changchun 130022, Peoples R China
来源：
RARE METALS | 2011年 / 30卷 / 01期
关键词：
phosphors; solid state reactions; rare earths; luminescence; LIGHT-EMITTING DIODE; GREEN; EU2+; CA; SR;
D O I：
10.1007/s12598-011-0188-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sr2MgSiO5:Eu(2+)phosphors were synthesized through a high temperature solid state reaction method. The phase and luminescence properties of the samples were characterized by X-ray diffraction (XRD) and a luminescence spectrometer. The effects of RE3+ (RE = La, Ce, Pr, Sm, Dy, Ho, Er, and Tm) on the luminescent properties of the samples were studied. The results show that the luminescence spectrum of Sr2MgSiO5:Eu2+ is a broad band composed of two emission peaks, at 460 and at 530 nm under near-ultraviolet excitation. Rare earth ions Re3+ (RE = La, Ce, Pr, Sm, Dy, Ho, Er, and Tm) have great influence on the emission of (SrMgSiO5)-Mg-2:Eu2+ phosphors. The La3+ ion in Sr2MgSiO5:Eu2+ phosphors greatly enhances the emission at 460 and 530 nm.
引用
收藏
页码：14 / 17
页数：4
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