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Enhanced electromagnetic wave shielding effectiveness of Fe doped carbon nanotubes/epoxy composites
被引:29
|作者:
Wang, Zhou
Wei, Guodong
Zhao, Guang-Lin
[1
]
机构:
[1] Southern Univ, Dept Phys, Baton Rouge, LA 70813 USA
基金:
美国国家科学基金会;
关键词:
MICROWAVE ABSORBING PROPERTIES;
DIELECTRIC-SPECTROSCOPY;
COMPLEX PERMITTIVITY;
WORK FUNCTION;
ABSORPTION;
IRON;
BAND;
D O I:
10.1063/1.4828356
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Fe doped multi-walled carbon nanotubes (MWCNTs)/epoxy composites were fabricated for the investigation of electromagnetic interference (EMI) shielding. Compared with the pristine MWCNTs, a small amount of Fe doping into the MWCNTs can substantially improve the EMI shielding effectiveness (SE) of MWCNTs/epoxy composites. The highest EMI shielding effectiveness of the composites is -32 to -41 dB in the measured frequency range from 26 to 40 GHz for the sample with 8 wt.% Fe doped MWCNT loading. The contribution of EMI SE of the composites is mainly due to dielectric loss rather than magnetic loss. (C) 2013 AIP Publishing LLC.
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