Optical properties of an ordered array of silica nanospheres embedded with silicon nanoclusters

被引:6
作者
Zhang, Y
Vijayalakshmi, S
Ajgaonkar, M
Grebel, H [1 ]
White, CW
机构
[1] New Jersey Inst Technol, Nonlinear Nanostruct Lab, Newark, NJ 07102 USA
[2] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
关键词
D O I
10.1364/JOSAB.17.001967
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The optical properties of Si nanoclusters embedded within an ordered array of silica spheres have been measured. Raman data were used to confirm the existence of the Si nanoclusters. Reflection measurements and a large photoluminescence signal demonstrated the effect of the periodic structure on the optical characteristics. The wavelength-dependent, photoluminescence decay time was in the range of 7 to 24 mus for lambda = 650 to lambda = 850 nn, respectively, implying contributions from surface or interface states. (C) 2000 Optical Society of America [S0740-3224(00)01612-X] OCIS codes: 020.4180, 050.1940, 060.5060, 130.0250, 130.4310, 240.5860.
引用
收藏
页码:1967 / 1972
页数:6
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