Figure 2From: Electroluminescence of ordered ZnO nanorod array/p-GaN light-emitting diodes with graphene current spreading layerSchematic structure of the LEDs and SEM image of the ZnO nanorod array. (a) Schematic structure of the ZnO nanorod array/p-GaN LEDs with graphene as the current spreading layer. (b) Top view SEM image of the ordered ZnO nanorods with and without (inset) graphene.Back to article page