The influence of Ti- and Si-doping on the structure, morphology and photo-response properties of α-Fe2O3 for efficient water-splitting: Insights from experiment and first-principles calculations

- Ti-, and, in particular, Si-doping leads to improved photo-currents.
- Direct and indirect band gaps measured as 2.15 and 1.98 eV, respectively.
- Hybrid DFT leads to semi-quantitative agreement for absorption coefficients.