A Red-Emitting Phosphor Rb2TaF7:Mn4+ for White Light-Emitting Diodes

被引：0
|
作者：
Yang, Qilin [1 ]
Zhe, Haifeng [1 ]
Yang, Jiaojiao [1 ]
Zhou, Qiang [1 ]
Tang, Huaijun [1 ]
Wang, Zhengliang [1 ]
机构：
[1] Yunnan Minzu Univ, Key Lab Green Chem Mat Univ Yunnan Prov, Sch Chem & Environm, Kunming 650500, Peoples R China
来源：
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY | 2023年 / 12卷 / 11期
基金：
中国国家自然科学基金;
关键词：
MN4+; LUMINESCENCE; EMISSION;
D O I：
10.1149/2162-8777/ad06e4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Herein, a new red phosphor Rb2TaF7:Mn4+ was prepared by the co-precipitation method. Under excitation of the blue light at 468 nm, this phosphor exhibits a series of red-emitting peaks, due to the E-2 ->(4)A(2) transitions of Mn4+. It is worth mentioning that an intense zero-phonon line (ZPL) of Mn4+ appears at 620 nm in this non-equivalent Mn4+ doping system. A white light-emitting diode (w-LED) based on the Rb2TaF7:Mn4+ (1.0 mol%) phosphor emits bright white light with a color temperature (T-c) of 4387 K and a color rendering index (Ra) of 88, showing its potential application in w-LEDs.
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页数：4
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