Upconversion luminescence in CaYb2-xErxGe3O10 (x=0-2)

被引：9
作者：
Lipina, Olga A. [1 ]
Surat, Ludmila L. [1 ]
Tyutyunnik, Alexander P. [1 ]
Zubkov, Vladimir G. [1 ]
机构：
[1] RAS, Inst Solid State Chem, UB, Ekaterinburg 620990, Russia
来源：
OPTICAL MATERIALS | 2016年 / 61卷
关键词：
Upconversion; Luminescence; Germanates; Erbium; Optical properties; CRYSTAL-STRUCTURE; SPECTROSCOPIC PROPERTIES; ER3+; YB3+; NIR; GERMANATE; DEPENDENCE; EMISSION; PHOSPHOR; RATIO;
D O I：
10.1016/j.optmat.2016.05.031
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new series of CaYb2-xErxGe3O10 (x = 0-2) germanates has been prepared by conventional solid state reaction and an EDTA-assisted precursor route. Strong upconversion luminescence has been detected under 980 nm diode laser excitation. Concentration dependencies study shows that the highest intensity of the lines around 408 nm (H-2(9/2) -> I-4(15/2)), 524 nm (H-2(11/2) -> I-4(15/2)), 548 nm (S-4(3/2) -> I-4(15/2)) and 659 nm (F-4(9/2) -> I-4(15/2)) is observed for the sample x = 0.2 prepared by the precursor method. The measured quantum yield for this compound is more than 3%. Possible mechanisms of energy transfer between active centers have been also proposed. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：98 / 104
页数：7
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