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.

Subject Categories:

  • Inorganic Chemistry
  • Polymer Chemistry
  • Electrical and Electronic Equipment
  • Laminates and Composite Materials
  • Electricity and Magnetism
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE