Infrared to-visible upconversion luminescence in Er:Yb:SrFBr nanocrystals

被引：13
作者：
Dissanayake, K. Tauni [1 ]
Rabuffetti, Federico A. [1 ]
机构：
[1] Wayne State Univ, Dept Chem, Detroit, MI 48202 USA
来源：
JOURNAL OF MATERIALS CHEMISTRY C | 2016年 / 4卷 / 13期
关键词：
RAY STORAGE PHOSPHOR; UPCONVERTING NANOPARTICLES; ENERGY-TRANSFER; FLUOROHALIDES; REFINEMENT; DEPENDENCE; BAFCL/SM3+; STRATEGY; CRYSTAL; SRFCL;
D O I：
10.1039/c5tc04302f
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ability of SrFBr nanocrystals codoped with similar to 1 mol% of Er3+ and Yb3+ to perform infrared-to-visible light upconversion is demonstrated. The average and local crystal structures conform to those expected on the basis of the P4/nmm tetragonal space-group. Excitation of Yb3+ at 980 nm results in two-photon upconversion and green-yellow luminescence from Er3+. The H-2(11/2), S-4(3/2), and F-4(9/2) excited states of the Er3+ activator in the SrFBr host exhibit a biexponential decay with lifetimes in the 100-200 and 300-400 mu s ranges.
引用
收藏
页码：2447 / 2451
页数：5
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