BaAl12O19:Eu2+ phosphors: Molten salt flux synthesis and blue emission with high color purity and excellently thermal stability

被引：20

作者：

Guo, Yanhua ^{[1
]}

Zhou, Sihua ^{[2
]}

Sun, Xianke ^{[2
]}

Lao, Xiaodong ^{[1
]}

Yuan, Huanli ^{[2
,3
]}

机构：

[1] ZhouKou Normal Univ, Sch Mech & Elect Engn, Zhoukou 466000, Peoples R China

[2] ZhouKou Normal Univ, Sch Phys & Telecommun Engn, Zhoukou 466000, Peoples R China

[3] ZhengZhou Univ, Coll Phys Engn, Zhengzhou 450000, Henan, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2019年 / 211卷

关键词：

BaAl12O19:Eu2+; Blue emission; Color purity; Thermal stability; WHITE-LIGHT; LUMINESCENT PROPERTIES; PHOTOLUMINESCENCE; SRAL2O4EU; EFFICIENT; ROUTE; EU2+; DY;

D O I：

10.1016/j.jlumin.2019.03.061

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We synthesized BaAl12O19:Eu2+ phosphors by the molten salt flux method at the relatively low temperature. The phase and luminescent properties of the synthesized phosphors were investigated. To investigate the influence of synthesis temperature on the phase formation of phosphors, different synthesis temperatures were carried out in the work. With the increasing synthesis temperature, the phase of product transfers from BaAl2O4 to BaAl12O19. And the emission band shifts to shorter wavelength due to the phase transition with the increasing synthesis temperature. The reason of blue shift is revealed by the analysis of crystal field splitting. The synthesized BaAl12O19:Eu2+ phosphors also show high color purity and excellently thermal stability.

引用

页码：271 / 275

页数：5

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