Near-infrared long-persistent phosphor of Zn3Ga2Ge2O10: Cr3+ sintered in different atmosphere

被引：37

作者：

Wu, Yiling ^{[1
]}

Li, Yang ^{[1
]}

Qin, Xixi ^{[1
]}

Chen, Ruchun ^{[1
]}

Wu, Dakun ^{[1
]}

Liu, Shijian ^{[1
]}

Qiu, Jianrong ^{[1
]}

机构：

[1] S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou 510640, Guangdong, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2015年 / 151卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

NIR long-persistent phosphorescence; Defect; Atmosphere; OPTICAL-PROPERTIES; LUMINESCENCE; THERMOLUMINESCENCE; RECOMBINATION; NANOPARTICLES; NANOPROBES; AFTERGLOW; DY3+; RED;

D O I：

10.1016/j.saa.2015.06.117

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A variety of materials sintered in different atmosphere have been well investigated, but there are few reports on the long-persistent phosphorescent materials, especially the near-infrared long-persistent phosphorescent materials sintered in various atmosphere. Changing the surrounding atmosphere is an effective method to improve the afterglow properties of the materials. In this work, we fabricate a typical kind of near-infrared long-persistent phosphorescent materials of Zn3Ga2Ge2O10: 0.5% Cr3+ in neutral, oxidizing, and reducing atmosphere. By analyzing the XRD patterns, afterglow spectra, decay and thermo-luminescence curves, we discuss the great effects on the structure, long persistent properties and trap properties of the phosphor. This work of obtaining the Zn3Ga2Ge2O10: 0.5% Cr3+ is of great potential in the applications in night-vision surveillance and in vivo bio-imaging. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：385 / 389

页数：5

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