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http://hdl.handle.net/10397/9499
Title: | Core/shell/shell-structured nickel/carbon/polyaniline nanocapsules with large absorbing bandwidth and absorber thickness range | Authors: | Liu, X Or, SW Leung, CM Ho, SL |
Issue Date: | 2014 | Source: | Journal of applied physics, 2014, v. 115, no. 17, 17A507, p. 17A507-1-17A507-3 | Abstract: | Core/shell/shell-structured nickel/carbon/polyaniline nanocapsules are prepared by a modified arc-discharge method and a chemical polymerization method, and their microwave absorbing properties are evaluated in the 2-18 GHz range covering the full S-Ku bands of microwaves. The bandwidth-broadening effect in various core/shell/shell material phases of the nanocapsules leads to Debye-type multidielectric polarizations in complex permittivity, a broad magnetic natural resonance of 2-8 GHz in complex permeability as well as extended absorbing bandwidth and absorber thickness range. A 3 mm-thick paraffin-bonded nanocapsule absorber shows an optimal reflection loss (RL) of -9.3 dB at 6.2 GHz with an extremely broad -5 dB-bandwidth of 3.4-18 GHz in almost the whole S-Ku bands as well as a very large absorber thickness range of down to 1 mm without deteriorating RL by 10%. | Publisher: | American Institute of Physics | Journal: | Journal of applied physics | ISSN: | 0021-8979 | EISSN: | 1089-7550 | DOI: | 10.1063/1.4861581 | Rights: | © 2014 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in X. Liu et al., J. Appl. Phys. 115, 17A507 (2014) and may be found at https://dx.doi.org/10.1063/1.4861581 |
Appears in Collections: | Journal/Magazine Article |
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Liu_Core_Shell_Shell-structured.pdf | 985.55 kB | Adobe PDF | View/Open |
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