Discovery of near-infrared persistent phosphorescence and Stokes luminescence in Cr3+ and Nd3+ doped GdY2Al3Ga2O12 dual mode phosphors

被引：11

作者：

Hou, Dejian ^{[1
]}

Zhang, Yi ^{[1
]}

Li, Jin-Yan ^{[1
]}

Li, Hongliang ^{[1
]}

Lin, Huihong ^{[1
]}

Lin, Zhenxu ^{[1
]}

Dong, Jianhong ^{[1
]}

Huang, Rui ^{[1
]}

Song, Jie ^{[1
]}

机构：

[1] Hanshan Normal Univ, Sch Mat Sci & Engn, Chaozhou 521041, Guangdong, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2020年 / 221卷

基金：

中国国家自然科学基金;

关键词：

Cr3+; Nd3+; Near-infrared; Persistent luminescence; Energy transfer; ENERGY-TRANSFER; FLUORESCENCE; PEROVSKITE; GD; LA;

D O I：

10.1016/j.jlumin.2020.117053

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The near-infrared (NIR) luminescence materials have attracted great attention on account of their potential applications in optical imaging field. In this paper, a series of Cr3+ and Nd3+ doped GdY2Al3Ga2O12 phosphors with luminescence in the biological windows were synthesized using a solid-state reaction method. The crystal field parameters, concentration dependent photoluminescence and persistent luminescence properties of Cr3+ were discussed in detail. Nd3+ ions exhibit perfect NIR to NIR Stokes luminescence in the host. The influence of Nd3+ doping concentration was studied by emission spectra and decay curves. Taking the advantages of both Cr3+ and Nd3+, dual mode phosphors with NIR persistent luminescence and NIR to NIR Stokes luminescence were designed and achieved. Based on the energy transfer process, persistent luminescence and thermo-luminescence curves, the luminescence mechanism was proposed.

引用

页数：8

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