Design and Synthesis of Superhydrophobic Carbon Nanofiber Composite Coatings for Terahertz Frequency Shielding and Attenuation
journal contribution
posted on 2011-08-04, 00:00 authored by Arindam Das, Constantine M. Megaridis, Lei Liu, Tao Wang, Abhijit BiswasWe report design and synthesis of polymer-based large-area superhydrophobic carbon nanofiber (CNF) composite coatings for tunable electromagnetic interference shielding and attenuation in the terahertz (THz) frequency regime. Such coatings with different CNF/polymer weight ratios are characterized by a frequency domain THz spectroscopy system. A maximum THz shielding effectiveness of ~32 dB was measured in the examined frequency range of 570–630 GHz. Coating attenuation level varied with CNF loading. Two-dimensional distributions of power attenuation at 600 GHz showed good spatial uniformity. The present composite coatings, in addition to their self-cleaning property, have high potential for advanced technology high-frequency applications.
Funding
This work was partially supported by NSF Grant No. ECCS-1002088.
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Publisher Statement
Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 98(17) and may be found at http://apl.aip.org/resource/1/applab/v98/i17/p174101_s1.Publisher
American Institute of PhysicsLanguage
- en_US
issn
0003-6951Issue date
2011-04-25Usage metrics
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