Photoluminescent properties of Sr2SiO4:Eu3+ and Sr2SiO4:Eu2+ phosphors prepared by solid-state reaction method

被引：15
|
作者：
乔艳敏 [1 ]
张鑫博 [1 ]
叶晓 [1 ]
陈艳 [1 ]
郭海 [1 ,2 ]
机构：
[1] Department of Physics,Zhejiang Normal University,Jinhua 321004,China
[2] Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces,Institute of Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China
来源：
Journal of Rare Earths | 2009年 / 27卷 / 02期
关键词：
Sr2SiO4:Eu2+; white light-emitting diodes (LED); rare earths;
D O I：
暂无
中图分类号：
O614.338 [];
学科分类号：
070301 ; 081704 ;
摘要：
Eu2+ and (or) Eu3+ doped Sr2SiO4 phosphors particles were synthesized by a conventional solid-state reaction technique, and their structural and optical properties were investigated. The X-ray diffraction (XRD) results showed that the obtained phosphors were composed of orthorhombic α’-Sr2SiO4 and monoclinic β-Sr2SiO4 phase. When excited under 256 nm, Sr2SiO4:Eu3+ phosphors showed intense emission in the red region. Sr2SiO4:Eu3+ phosphors exhibited white emissions (x=0.30, y=0.40, TC=6500 K) ranging from 425 to 650 nm when it was excited by near-ultraviolet (near-UV) light, indicating that Sr2SiO4:Eu2+ was a good light-conversion phosphor candidate for near-UV chip.
引用
收藏
页码：323 / 326
页数：4
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