Upconversion luminescence and ratiometric temperature sensing behavior of Er3+/Yb3+-codoped CaY2Ge3O10 germanate

被引：14

作者：

Lipina, Olga A. ^{[1
]}

Surat, Ludmila L. ^{[1
]}

Chufarov, Alexander Yu. ^{[1
]}

Tyutyunnik, Alexander P. ^{[1
]}

Zubkov, Vladimir G. ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620990, Russia

来源：

MENDELEEV COMMUNICATIONS | 2021年 / 31卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

luminescence; phosphors; temperature sensing; germanates; erbium;

D O I：

10.1016/j.mencom.2021.01.035

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new series of CaY2-10xYb9xErxGe3O10 trigermanates (space group P2(1)/c, Z= 4) has been synthesized using an EDTA-assisted method. Under 980 nm laser diode excitation, the samples exhibit intense upconversion luminescence corres-ponding to the characteristic transitions H-2(9/2) -> I-4(15/2) (400-420 nm), H-2(11/2), S-4(3/2) -> I-4(15/2) (500-600 nm) and F-4(9/2) -> (625-725 nm) in Er3+ ions. The CaY1.5Yb0.45Er0.05Ge3O10 phosphor can be used as a good temperature sensor with high absolute and relative sensitivities S-a(max) = 0.0051 K-1 and S-r(max) = 0.0109 K-1.

引用

页码：113 / 115

页数：3

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