Upconversion luminescence of Ho3+ sensitized by Yb3+ in transparent glass ceramic embedding BaYF5 nanocrystals

被引：51
作者：
Shan, Zhifa [1 ]
Chen, Daqin [1 ]
Yu, Yunlong [1 ]
Huang, Ping [1 ]
Weng, Fangyi [1 ]
Lin, Hang [1 ]
Wang, Yuansheng [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Grad Univ, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2010年 / 45卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Optical materials; Microstructure; Luminescence; Optical properties; ENERGY-TRANSFER; NANO-CRYSTALS; ER3+;
D O I：
10.1016/j.materresbull.2010.04.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Transparent SiO2-Al2O3-BaCO3-YE3-BaF2 glass ceramics co-doped with Yb3+/Ho3+ ions were prepared by melt quenching and subsequent heating. X-ray diffraction and transmission electron microscopy observation revealed that BaYF5 nanocrystals incorporated with Yb3+ and Ho3+ were precipitated homogeneously among the oxide glass matrix. Three upconversion emission bands centered at 483 nm, 545 nm and 645 nm, corresponding to the F-5(3) -> I-5(8), S-5(2), F-5(4) -> I-5(8) and F-5(5) -> I-5(8) transitions of Ho3+ respectively, were detected under 976 nm excitation, ascribing to the efficient energy transfer from Yb3+ to Ho3+. The red emission is prevailing in the precursor glass, while the green one turns to be dominant in the glass ceramic. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1017 / 1020
页数：4
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