Preparation and up-conversion luminescence of SrAlF5:Yb3+/Er3+ nanorods

被引：10
|
作者：
Zhao, Jun [1 ,2 ]
Hua, Ruinian [1 ]
Zhang, Wei [1 ]
Feng, Zhiqing [1 ]
Tang, Dongxin [1 ]
Na, Liyan [1 ]
Chen, Baojiu [2 ]
机构：
[1] Dalian Nationalities Univ, Coll Life Sci, Dalian 116600, Liaoning, Peoples R China
[2] Dalian Maritime Univ, Dept Phys, Dalian 116026, Liaoning, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 588卷
基金：
中国国家自然科学基金;
关键词：
SrAlF5:Yb3+/Er3+; Nanorods; Up-conversion luminescence; Microemulsion-hydrothermal; LIQUID-PHASE SYNTHESIS; QUANTUM DOTS; NANOPARTICLES; NANOCRYSTALS; MULTICOLOR; NANOCOMPOSITES; FLUORESCENCE; PARTICLES; COLLOIDS; BEHAVIOR;
D O I：
10.1016/j.jallcom.2013.11.064
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：
Yb3+ and Er3+ co-doped SrAlF5 nanorods with average diameter of 35 nm and average length of 400 nm were synthesized via a microemulsion-hydrothermal process, and their crystal structure and morphology were characterized by using X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM), respectively. The optimum doping concentration of Yb3+/Er3+ in SrAlF5 matrix was about 4 mol%. The upconversion luminescence intensity dependence on the laser diode (LD) working current was studied and the possible upconversion mechanism was analyzed. Furthermore, the temperature effect of upconversion luminescence was investigated. It was also found that the post heat-treatment could greatly improve upconversion luminescence. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：519 / 524
页数：6
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