Figure 5
From: Copper Nanowires as Fully Transparent Conductive Electrodes
(a) Optical image of the blue light EL of InGaN-based LED with Cu NW TEs. The TE well transmits light without visible blocking. (b) Schematic of the detection setup for evaluation of the transparency of Cu NW TEs on LED device, with collection of EL spectra from the frontside and backside. (c) and (d) show the corresponding EL spectra, respectively.
