This manuscrip treports differences between the photoelectrochemical (PEC )activity of hematite (α-Fe2O3) photoanodes produced by cathodic electrodeposition (ED) and spray pyrolysis (SP) methods.Both methods yield nanostructured polycrystalline α-Fe2O3 thin films without additional impurityphases. However, α-Fe2O3 produced by ED is characterised to have better crystallinity and highe rporosity, which was confirmed by XRD and SEM analysis .Owing to this, α-Fe2O3 obtained by ED generates a photocurren tthat is 2.5 times higher than α-Fe2O3 thin films prepared by SP. Furthermore, the influence of the thickness of the α-Fe2O3 thin films on the flat-band potential position wasi nvestigated. Mott–Schottky measurements revealed flat-band potential shift ing to morenegative values, closer to the value of water red-ox potentials, providing the possibility to use these films for efficient water splitting.