Fig. 4: Concentrated solar light PEC water splitting.
From: Pt nanoclusters on GaN nanowires for solar-asssisted seawater hydrogen evolution
a Schematic illustration and b photographs of the liquid flow cell for PEC water splitting. Light illuminates on the backside of n+-p Si wafer and HER takes place on the front side of Pt/GaN nanowires (NWs). LSV curves of Pt/GaN/Si measured with c 3-electrode and d 2-electrode configurations in 0.5 M NaCl under different light intensities. e Chronoamperometric curve and f amount of H2 produced and faradaic efficiency measured under light intensities of 1, 3, 6, and 9 suns at −3 V.
