Luminescence properties and energy transfer of Bi3+/Eu3+-codoped Ca10(PO4)6F2 phosphors

被引：73
|
作者：
Zhu, Hekai [1 ]
Xia, Zhiguo [1 ]
Liu, Haikun [1 ]
Mi, Ruiyu [1 ]
Hui, Zhuang [1 ]
机构：
[1] China Univ Geosci, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 09期
关键词：
Optical materials; X-ray diffraction; Optical properties; LIGHT-EMITTING-DIODES; RED; EXCITATION; SYSTEM;
D O I：
10.1016/j.materresbull.2013.05.045
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ca-10(PO4)(6)F-2:Bi3+, Eu3+ phosphors have been synthesized by a high temperature solid-state reaction, and their luminescence properties, especially the energy transfer behaviors have been investigated by photoluminescence emission, excitation spectra, and luminescence lifetimes analysis. The obtained spectroscopic data indicate that energy transfer takes place from Bi3+ to Eu3+ ions, and the color-tunable yellow, orange and red emission can be found from the Ca-10(PO4)(6)F-2:Bi3+, Eu3+ phosphors with different Bi3+/Eu3+ ratio. The energy transfer efficiency reaches 50.3% for the selected sample, which has the optimized doping concentrations of 2% for Bi3+ and 8% for Eu3+. The energy transfer mechanism from Bi3+. to Eu3+ in the Ca-10(PO4)(6)F-2 host was ascribed to the quadrupole-quadrupole interactions. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3513 / 3517
页数：5
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