Effects of flux concentration on the structural and luminescent properties of Eu2+-doped SrAl2O4

被引：3
|
作者：
Seo, Yeon Woo [1 ]
Moon, Byung Kee [1 ]
Choi, Byung Chun [1 ]
Jeong, Jung Hyun [1 ]
Shim, Koo Sung [2 ]
机构：
[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea
[2] Pukyong Natl Univ, Cooperat Lab Ctr, Pusan 608737, South Korea
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2014年 / 65卷 / 10期
基金：
新加坡国家研究基金会;
关键词：
SrAl2O4:Eu2+; Effect of flux; Green emission; PHOSPHOR;
D O I：
10.3938/jkps.65.1619
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Eu2+-doped SrAl2O4 phosphors were synthesized using a solid-state reaction method. The structural and the luminescent properties of the phosphors were investigated by using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and photoluminescence (PL) excitation and emission spectra. SrAl2O4:Eu2+ phosphors with H3BO3 showed a pure monoclinic phase and exhibited a broad green-emission band with a maximum at 520 nm. The luminescence of the phosphors originates from the transition of Eu2+ ions from the 4f(6)5d(1) excited state to the 4f(7) ground state. These results indicate that SrAl2O4:Eu2+ phosphors exhibit potential applications as efficient green emitting phosphors for use in near-ultraviolet light-emitting diodes.
引用
收藏
页码：1619 / 1623
页数：5
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