Synthesis and luminescence properties of single-component Ca5(PO4)3F:Dy3+, Eu3+ white-emitting phosphors

被引：20
|
作者：
Yu, Meng [1 ]
Zhang, Wentao [1 ,2 ]
Qin, Shiyu [1 ]
Li, Junfeng [1 ,2 ]
Qiu, Kehui [1 ,2 ]
机构：
[1] Chengdu Univ Technol, Coll Mat & Chem Chem Engn, Chengdu, Sichuan, Peoples R China
[2] Chengdu Univ Technol, Inst Mat Sci & Technol, Chengdu, Sichuan, Peoples R China
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2018年 / 101卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Ca-5(PO4)(3)F; energy transfer; luminescence enhancement; rare earth co-doping; white-emitting phosphor; EFFICIENT ENERGY-TRANSFER; PHOTOLUMINESCENCE PROPERTIES; RED PHOSPHOR; CHARGE COMPENSATION; M-5(PO4)(3)F M; LIGHT; EMISSION; DIODES; DY3+; LEDS;
D O I：
10.1111/jace.15701
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A series of Ca-5(PO4)(3)F:Dy3+, Eu3+ phosphors was synthesized by a solid-state reaction method. The XRD results show that all as-prepared Ca-5(PO4)(3)F:Dy3+, Eu3+ samples match well with the standard Ca-5(PO4)(3)F structure and the doped Dy3+ and Eu3+ ions have no effect on the crystal structure. Under near-ultraviolet excitation, Dy3+ doped Ca-5(PO4)(3)F phosphor shows blue (486nm) and yellow (579nm) emissions, which correspond to (F9/2H15/2)-F-4-H-6 and (F9/2H13/2)-F-4-H-6 transitions respectively. Eu3+ co-doped Ca-5(PO4)(3)F:Dy3+ phosphor shows the additional red emission of Eu3+ at 631nm, and an improved color rendering index. The chromaticity coordinates of Ca-5(PO4)(3)F:Dy3+, Eu3+ phosphors also indicate the excellent warm white emission characteristics and low correlated color temperature. Overall, these results suggest that the Ca-5(PO4)(3)F:Dy3+, Eu3+ phosphors have potential applications in warm white light-emitting diodes as single-component phosphor.
引用
收藏
页码：4582 / 4590
页数：9
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