17 research outputs found
Coherent addition of orthogonally polarized fibre lasers with high combining efficiency
Recent Advances in Laser Utilization in the Chemical Modification of Graphene Oxide and Its Applications
Effect of energy density on the machining character of C/SiC composites by picosecond laser
Three-dimensional patterning of solid microstructures through laser reduction of colloidal graphene oxide in liquid-crystalline dispersions
Functionalized Graphene Nanoribbon Films as a Radiofrequency and Optically Transparent Material
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 Ă 105 W/m2) of RF power with negligible loss, at an RF transmittance of âŒ99%. 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 desire