Ag/CNT nanocomposites and their single- and double-layer electromagnetic wave absorption properties

被引:34
|
作者
Melvin, Gan Jet Hong [1 ]
Ni, Qing-Qing [2 ,3 ]
Natsuki, Toshiaki [1 ,2 ]
Wang, Zhipeng [1 ]
Morimoto, Shingo [1 ]
Fujishige, Masatsugu [1 ]
Takeuchi, Kenji [1 ]
Hashimoto, Yoshio [1 ]
Endo, Morinobu [1 ]
机构
[1] Shinshu Univ, Inst Carbon Sci & Technol, Nagano 3808553, Japan
[2] Shinshu Univ, Dept Funct Machinery & Mech, Ueda, Nagano 3868576, Japan
[3] Zhejiang Sci Tech Univ, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Hangzhou, Zhejiang, Peoples R China
关键词
Carbon nanotube; Silver nanoparticle; Nanocomposite; Electromagnetic wave absorber; Reflection loss; MICROWAVE-ABSORBING PROPERTIES; CARBON NANOTUBE COMPOSITES; SILVER NANOPARTICLES; HYBRID NANOCOMPOSITES; SURFACE; OXIDES; MEDIA; FILMS;
D O I
10.1016/j.synthmet.2015.08.017
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electromagnetic wave absorption properties of single- and double-layer silver nanoparticle/carbon nanotube (Ag/CNT) nanocomposites were evaluated. The reflection loss (R.L.) of the samples was calculated based on the measured complex permittivity and permeability. The double-layer composites constructed from CNT 30 wt.% and Ag/CNT 30 wt.% with total thickness of 3.3 mm showed a minimum R.L. of similar to-52.9 dB (over 99.999% absorption) at 63 GHz. The bandwidth of reflection loss less than 10 dB was observed at 3 regions, with wideness of 3.5, 0.8, and 1.5 GHz. Thin absorber with large RI. and wide response bandwidth at low and high frequency regions can be obtained with double-layer composites. The capability to modulate the absorption and bandwidth of these samples to suit various applications in different frequency bands indicates that these nanocomposites could be an excellent electromagnetic wave absorber. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:383 / 388
页数:6
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