Preparation and luminescent properties of red light-emitting phosphor Ca8Mg(SiO4)4Cl2:Eu3+

被引：0
|
作者：
Zhang S. [1 ]
Xu R. [1 ]
Chen X. [1 ]
Gao S. [1 ]
机构：
[1] College of Chemistry, Fuzhou University, Fuzhou
来源：
| 1600年 / Chinese Ceramic Society卷 / 44期
关键词：
Charge compensation; Europium-doped calcium magnesium chlorosilicate; Luminescence; Phosphors; Sol-gel method; White light-emitting diodes;
D O I：
10.14062/j.issn.0454-5648.2016.10.16
中图分类号：
学科分类号：
摘要：
A series of Eu3+-doped red-emitting phosphors Ca8Mg(SiO4)4Cl2 were synthesized by a sol-gel method. The as-synthesized phosphors were characterized by X-ray diffraction, scanning electron microscopy and photoluminescence spectroscopy. Effects of Eu3+ adding amount and charge compensation agent (i.e., Li+, Na+, K+) on the emission intensity of the sample were investigated. The results indicate that the phosphors can be efficiently excited in a near ultraviolet light of 393 nm. The most intensive emission intensity of the Ca8Mg(SiO7)4Cl2:Eu3+ phosphor, which is prepared with Na+ ions at the Eu3+doping content of 3% (in mole fraction), can be obtained. The chromaticity coordinates of the Ca8Mg(SiO4)4Cl2:Eu3+ phosphor are calculated to be x=0.641 and y=0.358, located in the red region of the CIE 1931 chromaticity diagram. © 2016, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1488 / 1493
页数：5
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