Investigation on the fluorescence properties of Er-doped sol-gel silica glasses

被引:0
|
作者
Li, YG [1 ]
Liu, LY [1 ]
Hou, ZJ [1 ]
Xu, L [1 ]
Wang, WC [1 ]
机构
[1] Fudan Univ, Dept Opt Sci & Engn, State Key Lab Adv Photon Mat & Devices, Shanghai 200433, Peoples R China
关键词
sol-gel method; Er; carbon tetrachloride; OH concentration; fluorescence lifetime;
D O I
暂无
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Er-doped silica glasses (5000ppm Er/Si mol) were prepared by sol-gel method. Gel samples underwent dehydration in carbon tetrachloride environment. It shows that carbon tetrachloride can remove hydroxyl groups effectively. As a result, I-13/2-I-15/2 fluorescence lifetime rises considerably. It is also found that fluorescence lifetime is strongly dependent on OH concentration. For samples annealed in carbon tetrachloride at 900degreesC, fluorescence lifetime as long as 6ms was reached.
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页码:290 / 293
页数:4
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