Nanofractal structure consisting of nanoparticles produced by ultrashort laser pulses

被引:6
作者
Nishikawa, Kumiko
Takano, Kei
Miyahara, Hidekazu
Kawamura, Tohru
Okino, Akitoshi
Hotta, Eiki
Nayuki, Takuya
Oishi, Yuji
Fujii, Takashi
Wang, Xiaofang
Nemoto, Koshichi
机构
[1] Cent Res Inst Elect Power Ind, Sector Appl High Energy Phys, Elect Power Engn Res Lab, Yokosuka, Kanagawa 2400196, Japan
[2] Tokyo Inst Technol, Dept Energy Sci, Interdisciplinary Grad Sch Sci & Technol, Midori Ku, Yokohama, Kanagawa 2268502, Japan
关键词
ABLATION;
D O I
10.1063/1.2402225
中图分类号
O59 [应用物理学];
学科分类号
摘要
By irradiating subpicosecond laser onto an iron plate, a nanofibrous structure consisting of iron nanoparticles with diameters less than 12 nm was produced. The nanofibrous structure was found to be three-dimensional fractal, and its fractal dimension measured from field-emission scanning electron microscopy images conserved the same fractal dimension of 1.73 in the wide-scale range from 30 nm to 60 mu m, and the smallest fractal structure was less than 10 nm. The growth of this fractal is related to the cluster-cluster aggregation model, and it suggests that the fractal structure grew by the attachment of clusters consisting of nanoparticles. (c) 2006 American Institute of Physics.
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页数:3
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