Fig. 2: Low-loss nanocrystalline graphene electrodes embedded in a photonic crystal (PhC) cavity.
From: An electroluminescent and tunable cavity-enhanced carbon-nanotube-emitter in the telecom band
a Measured insertion loss of cavity cross-bar structures with integrated nanocrystalline graphene (NCG) electrodes (green curve), gold electrodes (blue curve), without electrodes (red curve). The error bar was calculated by measuring the total loss through a device with multiple electrodes in dependence of the number of electrodes and fitting the result by linear regression. Scanning electron microscope (SEM) images of cavity cross-bars with a tapered width 200 nm (b) without electrodes, (c) with 5 nm thick NCG electrodes and (d) 120 nm thick gold electrodes. The scale bar represented in panel (b) applies also to panels (c, d).
