Synthesis and luminescence properties of Sr3GdNa(PO4)3F: Sm3+ phosphor

被引：20
作者：
Han, Liu [1 ]
Xu, Denghui [1 ]
Xu, Qiguang [1 ]
Di, Qiumei [1 ]
Sun, Jiayue [1 ]
机构：
[1] Beijing Technol & Business Univ, Sch Sci, Beijing 100048, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2015年 / 50卷 / 05期
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
ENERGY-TRANSFER; TUNABLE LUMINESCENCE; DY; PR; EU;
D O I：
10.1007/s10853-014-8788-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of Sr3Gd(1-x)Sm (x) Na(PO4)(3)F (x = 0.01, 0.03, 0.05, 0.07, 0.09) phosphors were synthesized through a conventional high-temperature solid-state reaction. The excitation and emission spectra indicate that these phosphors can be efficiently excited in the range from 350 to 430 nm which matches perfectly with the near-UV light, and emit orange-red light with CIE coordinates (0.5811, 0.4181). The concentration quenching mechanism of Sm3+ ions was ascribed to the dipole-dipole interaction. The activation energy E for thermal quenching is calculated to be 0.242 eV. And the lifetime of the Sr3Gd(1-x)Sm (x) Na(PO4)(3)F (x = 0.03, 0.05, 0.07, 0.09) phosphor was determined to be 0.8669, 0.8643, 0.8525, 0.8232 ms, respectively. These orange-red-emitting phosphors might be promising for use in n-UV white LEDs.
引用
收藏
页码：2257 / 2262
页数：6
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