Structure, site occupancies, and luminescence properties of Ca10M(PO4)7: Ce3+ (M = Li, Na, K) phosphors

被引：11
作者：
Xie, Mubiao [1 ]
机构：
[1] Lingnan Normal Univ, Sch Chem & Chem Engn, Zhanjiang 524048, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 775卷
基金：
中国国家自然科学基金;
关键词：
Luminescence; Phosphors; CaloM(PO4)(7); Ce3+ ions; ENERGY-TRANSFER; PHOTOLUMINESCENCE; ULTRAVIOLET;
D O I：
10.1016/j.jallcom.2018.10.162
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, we reported a detailed studies on photoluminescence properties of Ce3+-doped Ca10M(PO4)(7): Ce3+ (M = Li, Na, K) phosphors. VUV-UV-vis photoluminescence (PL) were employed to discuss the site occupancies of Ce(3+)ions in the host. Two kinds of Ce(3+)centers were observed in Ca10M(PO4)(7) (M = Li, Na, K). The Ce(I)(3+) emission at similar to 355 nm is contributed to Ce3+ ions in Ca(1), Ca(2) or Ca(3) sites, while the Ce(II)(3+) emission at similar to 430 nm are assigned to Ce3+ entering Ca(5) site. The effects of temperature on Ce3+ luminescence properties show Ce(2) 3+ emissions have a faster thermal quenching in Ca10M(PO4)(7). (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：1129 / 1135
页数：7
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