Temperature dependent of luminescence and decay behavior of Eu2+ in NASICON-type phosphate CaZr4(PO4)6

被引：11
|
作者：
Wu, Luyi [1 ]
Zhang, Hongzhi [1 ]
Zheng, Wei [1 ]
Zhang, Xinmin [1 ]
Seo, Hyo Jin [2 ,3 ]
机构：
[1] Cent South Univ Forestry & Technol, Sch Mat Sci & Engn, Changsha 410004, Hunan, Peoples R China
[2] Pukyong Natl Univ, Dept Phys, Busan 608737, South Korea
[3] Pukyong Natl Univ, Interdisciplinary Program Biomed Mech & Elect Eng, Busan 608737, South Korea
来源：
MATERIALS RESEARCH BULLETIN | 2017年 / 93卷
关键词：
Phosphors; Photoluminescence; Decay; CaZr4(PO4)(6):Eu2+; ALKALINE-EARTH IONS; ENERGY-TRANSFER; HOST LATTICES; PHOTOLUMINESCENCE;
D O I：
10.1016/j.materresbull.2017.05.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The temperature dependence of photoluminescence properties and decay times in the range 10-300K is reported for Eu2+ doped NASICON-type phosphate CaZr4(PO4)(6). Luminescence from the Eu2+ impurity has been investigated. Two different Eu2+ centers have been detected in the host structure, 3a and 3b, corresponding to the emission bands peaking at 531 and 480 nm. The emission intensity and lifetimes decrease with increasing temperature due to temperature quenching. The values of Stokes shift, quenching temperature T-1/2 and activation energy for thermal quenching are evaluated. The mechanism of thermal quenching is also discussed. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：245 / 250
页数：6
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