Figure 1From: Electroluminescence of ordered ZnO nanorod array/p-GaN light-emitting diodes with graphene current spreading layerOrdered and aligned ZnO nanorod arrays on the p-GaN substrates grown at 50°C for 6 h. With the reactant concentration of (a) 0.05 M and (b) 0.035 M by using 500 nm PS microspheres without RIE; (c) 0.05 M and (d) 0.035 M by RIE of 500 nm PS microspheres for 1.5 min.Back to article page