Multiple magnification effects of Ce3+ ions on near-infrared persistent luminescence of Cr-doped LaAlO3

被引：10
|
作者：
Zhang, Yi [1 ]
Huang, Rui [2 ,3 ]
Lin, Zhenxu [1 ]
Song, Jie [2 ]
Wang, Xiang [2 ]
Guo, Yanqing [2 ]
Song, Chao [2 ]
Yu, Ying [1 ]
Robertson, John [3 ]
机构：
[1] Cent China Normal Univ, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China
[2] Hanshan Normal Univ, Dept Phys & Elect Engn, Chaozhou 521041, Guangdong, Peoples R China
[3] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
来源：
OPTICAL MATERIALS EXPRESS | 2016年 / 6卷 / 03期
基金：
中国国家自然科学基金;
关键词：
LONG-LASTING PHOSPHOR; OPTICAL-PROPERTIES; ENERGY-TRANSFER; NANOPARTICLES; MN2+; GA;
D O I：
10.1364/OME.6.000922
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ce3+/Cr3+ co-doped LaAlO3 for near-infrared (NIR) long lasting phosphors were synthesized through solid-state reaction. Incorporation of Ce3+ ions into Cr3+-doped LaAlO3 significantly enhanced the NIR persistent luminescence by more than one order of magnitude compared with LaAlO3 doped with Cr3+. Detailed analysis of the photoluminescence, photoluminescence excitation, and Thermo-luminescence spectra, as well as the persistent decay behavior of Ce3+/Cr3+ co-doped LaAlO3, indicated that the improvement of NIR persistent luminescence at around 735 nm (Cr3+: E-2 ->(4)A(2) transition) is not only originated from a persistent energy transfer process from Ce3+ ions to Cr3+ ions, but also attributed to the extra efficient traps created by incorporation of Ce3+ ions. The current work develops an alternative approach toward the efficient NIR Cr3+-doped non-gallate longpersistence phosphors. (C) 2016 Optical Society of America
引用
收藏
页码：922 / 928
页数：7
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