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

被引：54

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

页码：30588 / 30593

页数：6

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