Influence of Y 3+ions on the optical properties of Dy 3+-activated LaF 3 single crystal

被引：12

作者：

Hu, Mingyuan ^{[1
,2
]}

Wang, Yan ^{[1
,5
]}

Lian, Yingshu ^{[1
,3
]}

Cai, Xiuyuan ^{[1
,2
]}

Zhu, Zhaojie ^{[1
,5
]}

You, Zhenyu ^{[1
,5
]}

Li, Jianfu ^{[1
,5
]}

Sun, Yijian ^{[4
]}

Tu, Chaoyang ^{[1
,5
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

[3] Normal Univ, Coll Mat Sci & Engn, Fuzhou 350007, Fujian, Peoples R China

[4] Jiangxi Univ Sci & Technol, Fac Mat Met & Chem, Ganzhou 341000, Jiangxi, Peoples R China

[5] Fujian Sci Technol Innovat Lab Optoelect Informat, Fuzhou 350108, Fujian, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2020年 / 224卷

关键词：

ENERGY-TRANSFER; IONS; GLASSES; INTENSITIES; ABSORPTION; EMISSION; GROWTH; LASER;

D O I：

10.1016/j.jlumin.2020.117264

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this exploration, the 2 at% Dy3+ and 3 at% Y3+ codoped LaF3 single crystal was grown by the temperature gradient technique. The influence of non-optically-active Y3+ ions on the luminescence of Dy3+ ions in LaF3 crystals has been explored. Geometry optimization demonstrates that the crystallographic symmetry for Dy3+ ions can be distorted from C2 to lower symmetry C1. Low temperature excitation and emission spectra prove that Dy3+ ions occupy the same kind of spectroscopic site in Dy3+/Y3+ codoped LaF3 crystals. The Judd-Ofelt (J-O) theory analysis and room temperature fluorescence emission spectra have testified that the fluorescence emission intensity of Dy3+ with Y3+ is several times than that without Y3+ in LaF3 at yellow and mid-infrared region. Codoping with non-optically-active Y3+ ions could weaken the concentration quenching effect of Dy3+ and strengthen the luminescence intensity of Dy3+ ions. © 2020 Elsevier B.V.

引用

页数：7

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