Figure 4From: Synthesis of zinc oxide nanostructures on graphene/glass substrate by electrochemical deposition: effects of current density and temperaturePL spectra of the grown ZnO structures with different applied current densities and temperatures. PL spectra of the grown ZnO structures with different applied current densities at temperatures of (a) 75°C, (b) 80°C, and (c) 90°C. (d) Current density vs. PL intensity ratio, IUV/IVIS.Back to article page