White upconversion luminescence in CaF2:Yb3+/Eu3+ powders via the incorporation of Y3+ ions

被引：15
|
作者：
Li, Yangyang [1 ]
Guo, Junjie [1 ]
Liu, Xiaohui [1 ]
Aidilibike, Tuerxun [1 ,2 ]
Qin, Weiping [1 ]
机构：
[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China
[2] Yili Normal Univ, Elect & Informat Engn, Yining 835000, Xinjiang, Peoples R China
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2016年 / 18卷 / 24期
基金：
中国国家自然科学基金;
关键词：
ENERGY-TRANSFER; NANOCRYSTALS; EMISSION; GREEN; BLUE; RED; FLUORESCENCE; ULTRAVIOLET; TM3+;
D O I：
10.1039/c6cp02849g
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：
White upconversion luminescence (UCL) was achieved under 980 nm excitation in the CaF2:Yb3+/Eu3+ material using Y3+ to adjust the luminescence performance. In this luminescent system, Yb3+ not only plays the role of a sensitizer of Eu3+, but also generates green fluorescence from Yb3+ dimers (2-Yb3+) by cooperative transitions in the CaF2 matrix. One of the primary colors of green corresponds to the 2-Yb3+ cooperative emission exactly. Eu3+ acts as an activator for emitting red and blue fluorescence simultaneously. Interestingly, the color of the UCL can be controlled by adjusting the doping concentration of Y3+ ions, and white UCL was realized when the concentration of Y3+ was 1%.
引用
收藏
页码：16094 / 16097
页数：4
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