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

作者：Melvin Gan Jet Hong^*; Ni Qing Qing; Natsuki Toshiaki; Wang Zhipeng; Morimoto Shingo; Fujishige Masatsugu; Takeuchi Kenji; Hashimoto Yoshio; Endo Morinobu

来源：Synthetic Metals, 2015, 209: 383-388.

DOI：10.1016/j.synthmet.2015.08.017

• Carbon nanotube
• Silver nanoparticle
• Nanocomposite
• Electromagnetic wave absorber
• Reflection loss

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.

• 出版日期2015-11
• 单位浙江理工大学