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Reduction of Eu3+ to Eu2+ in Eu-doped high silica glass prepared in air atmosphere
被引:63
作者:
Zhang, Qiang
[1
,2
]
Liu, Xiaofeng
[2
,3
]
Qiao, Yanbo
[1
,2
]
Qian, Bin
[2
,3
]
Dong, Guoping
[2
,3
]
Ruan, Jian
[2
,3
]
Zhou, Qinling
[1
]
Qiu, Jianrong
[4
]
Chen, Danping
[1
]
机构:
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat Sci & Technol High Power Lasers, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
[4] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Europium and aluminum ions;
Reduction effect;
Energy transfer;
Photoluminescence and ESR spectra;
LUMINESCENCE PROPERTIES;
D O I:
10.1016/j.optmat.2009.10.002
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Eu-doped and Eu/Al-codoped high silica glasses (HSGs) are prepared by infiltration and densification method. Absorption, photoluminescence and electron spin resonance (ESR) spectra of the Eu-doped high silica glasses (HSGs) are measured and the results indicate the reduct on of Eu3+ to Eu2+ ions partly in Eu/Al-codoped HSGs. Energy transfer between Eu2+ ions and Eu3+ ions is observed and this transfer enhances the intensity of Eu3+ ions. The reduction mechanism is also discussed. (C) 200 Elsevier B.V. All rights reserved.
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页码:427 / 431
页数:5
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