共 3 条
Optical characterization of Er-implanted ZnO films formed by sol-gel method
被引:24
作者:
Fukudome, T
[1
]
Kaminaka, A
[1
]
Isshiki, H
[1
]
Saito, R
[1
]
Yugo, S
[1
]
Kimura, T
[1
]
机构:
[1] Univ Electrocommun, Dept Elect Engn, Chofu, Tokyo 1828585, Japan
来源:
关键词:
ZnO;
Er;
sol-gel;
implantation;
photoluminescence;
D O I:
10.1016/S0168-583X(03)00746-8
中图分类号:
TH7 [仪器、仪表];
学科分类号:
0804 ;
080401 ;
081102 ;
摘要:
In this paper, we report on the 1.54 mum photoluminescence (PL) of Er-implanted ZnO thin films formed by a sol-gel method on Si substrates. In spite of the polycrystalline structure of the sol-gel ZnO thin films, they showed strong PL emissions due to the near band edge recombination at 375 nm as well as the Er-related luminescence at 1.54 mum. The Er-related luminescence showed no decrease (quench) in the intensity up to the Er concentration of 1.5 x 10(21) cm(-3). The PL intensity of Er-implanted ZnO at 1.54 mum was found to be as strong as Er-doped PS (porous Si) at 20 K, and the intensity reduced to 1/3 at room temperature. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码:287 / 290
页数:4
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