Frequency dependence of effective permittivity of carbon nanotube composites

被引：57
|
作者：
Liu, L. [1 ]
Matitsine, S.
Gan, Y. B.
Chen, L. F.
Kong, L. B.
Rozanov, K. N.
机构：
[1] Natl Univ Singapore, Temasek Labs, Singapore 117548, Singapore
[2] Inst Theoret & Appl Electromagnet, Moscow, Russia
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 09期
关键词：
D O I：
10.1063/1.2728765
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Dependence of the permittivity of single-walled and multiwalled carbon nanotube composites on frequency and concentration was investigated experimentally using the coaxial air-line method over 0.1-10 GHz. The results are in good agreement with that obtained using the impedance method. It is found that scaling law based on the percolation theory provides a good description of the frequency dependence of measured permittivity in carbon nanotube composites. Parameters of the scaling law and deviations from the percolation theory are also discussed. (C) 2007 American Institute of Physics.
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页数：7
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