Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application
Figure 5
(a) Photocurrent potential curves under solar simulator (AM1.5G) for doped ZnO films with different doping concentrations. (b) Photocurrent transients of the same films at an applied bias voltage of 0.6 V versus SCE under ON/OFF conditions.