Figure 4: Overall unassisted water splitting.
From: Enabling unassisted solar water splitting by iron oxide and silicon
(a) Schematics of overall unassisted water splitting by haematite photoanode (right) and amorphous Si photocathode (left) in a tandem configuration. (b) Net photocurrent during the first 10 h of operation using NiFeOx-modified rgH II with TiO2/Pt-loaded amorphous silicon photocathode in 0.5 M phosphate solution (pH 11.8) in a two-electrode, tandem configuration (no external bias).
