Cr3+ activated Zn3Al2Ge3O12: a novel near-infrared long persistent phosphor

被引：8

作者：

Huang, Weichao ^{[1
]}

Wu, Dongni ^{[1
,2
]}

Gong, Xinyong ^{[1
]}

Deng, Chaoyong ^{[1
]}

机构：

[1] Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Guizhou, Peoples R China

[2] Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Guizhou, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 07期

基金：

中国国家自然科学基金;

关键词：

LUMINESCENCE PROPERTIES; RED; NANOPARTICLES; DEEP; ZINC; AFTERGLOW; TIN;

D O I：

10.1007/s10854-017-8491-0

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The near-infrared (NIR) long persistent phosphors have gained considerable attention owing to the potential applications in in vivo imaging. A novel NIR long-persistent phosphors Zn3Al2Ge3O12:Cr3+ was successfully synthesized by a high temperature solid-state reaction. The luminescent properties and the afterglow behaviors of the Zn3Al2Ge3O12:Cr3+ were investigated in detail. On the basis of thermoluminescence analyses, the mechanism of the persistent afterglow of the phosphors was also discussed briefly. The afterglow duration of this phosphor can last more than 12 h with the 650-750 nm emission range after stoppage of 254 nm ultraviolet light irradiation. Specifically, the persistent luminescence intensity and duration were regulated by changing Cr3+ doping concentration. All the results indicate that the Cr3+ activated Zn3Al2Ge3O12 has promising potential of practical applications.

引用

页码：5275 / 5281

页数：7

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