Accession Number:
ADA610696
Title:
Light-Weight Low-Loss Dielectric Polymer Composites Containing Carbon Nanostructure
Descriptive Note:
Final rept. 1 Aug 2009-31 Jul 2014
Corporate Author:
RICE UNIV HOUSTON TX
Personal Author(s):
Report Date:
2014-10-17
Pagination or Media Count:
45.0
Abstract:
We report that conductive films made from hexadecylated graphene nanoribbons HD-GNRs can have high transparency to radiofrequency RF waves even at very high incident power density. Nanoscale-thick HD-GNR films with an area of several square centimeters were found to transmit up to 390 W 2 105 Wm2 of RF power with negligible loss, at an RF transmittance of 99. The HD-GNR films conformed to electromagnetic skin depth theory, which effectively accounts for the RF transmission. The HD-GNR films also exhibited sufficient optical transparency for tinted glass applications, with efficient voltage-induced deicing of surfaces. The dispersion of the HD-GNRs afforded by their edge functionalization enables spray , spin- or blade-coating on almost any substrate, thus facilitating flexible, conformal and large-scale film production. In addition to use in antennas and radomes where RF transparency is crucial, these capabilities bode well for the use of the HD-GNR films in automotive and general glass applications where both optical and RF transparencies are desired.
Descriptors:
Subject Categories:
- Inorganic Chemistry
- Polymer Chemistry
- Electrical and Electronic Equipment
- Laminates and Composite Materials
- Electricity and Magnetism
- Mechanics