Additional file 1 of Enhanced Patterned Cocatalyst TiO2/Fe2O3 Photoanodes for Water-Splitting

Additional file 1. Figure S1. SEM image and cross-sectional image of anodized aluminum template at different voltages (a) 30 V, (b) 60 V, (c) 90 V, (d) 120 V. And the corresponding transfer SEM images on the surface of epoxy resin, (a2) 30 V, (b2) 60 V, (c2) 90 V, (d2) 120 V. Figure S2. The full XPS survey spectrum analysis chart of patterned TiO2/Fe2O3 photoanode. Figure S3. The EIS measurement compares the difference between TiO2/Fe2O3 photoanode before and after hot pressing process. Figure S4. Compare the photocurrent response of patterned TiO2/Fe2O3 photoanode under two different laser irradiations. Figure S5. Tafel slope of the TiO2/Fe2O3 photoanodes with/without pattern.