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
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 18期
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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页数：5
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