Photoluminescence properties of a novel red fluoride K2LiGaF6: Mn4+ nanophosphor

被引：53
|
作者：
Zhu, Yiwen [1 ]
Yu, Jinbo [1 ]
Liu, Yong [1 ]
Brik, Mikhail G. [2 ,3 ,4 ]
Huang, Lin [1 ]
Xuan, Tongtong [1 ]
Wang, Jing [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Chem, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China
[2] Chongqing Univ Posts & Telecommun, Coll Math & Phys, 2 Chongwen Rd, Chongqing 400065, Peoples R China
[3] Univ Tartu, Inst Phys, W Ostwald Str 1, EE-50411 Tartu, Estonia
[4] Jan Dlugosz Univ, Inst Phys, Armii Krajowej 13-15, PL-42201 Czestochowa, Poland
来源：
RSC ADVANCES | 2017年 / 7卷 / 49期
基金：
中国国家自然科学基金;
关键词：
COLOR RENDERING INDEX; HIGHLY EFFICIENT; EMITTING PHOSPHOR; OPTICAL-PROPERTIES; LUMINESCENCE; EMISSION; TEMPERATURE; PARTICLES; MECHANISM; PROSPECTS;
D O I：
10.1039/c7ra05635d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Red K2LiGaF6: Mn4+ phosphors have been synthesized by the facile cation-exchange method. To optimize the optical properties, the phosphors were synthesized by using different reaction conditions. The highest luminescence intensity was increased 3.6 times for the Mn concentration of 1%, reaction temperature of 20 degrees C, and reaction time of 1 h. Replacement of the trivalent Al by Ga resulted in K2LiGaF6: Mn4+ having better photoluminescence properties than K2LiAlF6: Mn4+. Furthermore, the studies of the temperature-dependent emission intensity of the phosphors confirmed their good thermal stability, making them promising red phosphor candidates for white light-emitting diodes.
引用
收藏
页码：30588 / 30593
页数：6
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