Development of Thin Film Amorphous Silicon Tandem Junction Based Photocathodes Providing High Open-Circuit Voltages for Hydrogen Production
Figure 10
Cyclic voltammetry measurement of a-Si:H/a-Si:H photocathodes with no metallic back contact (solid grey curve), with ZnO/Ag back contact (solid black curve, photocathode C from Table 3) and with ZnO/Ag/Pt back contact (dashed curve), in 0.1 M H2SO4 solution (pH 1) under 100 mW/cm2 illumination intensity at a scan rate of 30 mV s−1.
