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

被引：16

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

页码：16094 / 16097

页数：4

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