Enhanced photoelectrochemical activity of nanostructured ZnFe ₂ O ₄ thin films prepared by the electrospray technique

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Nanostructured spinel zinc ferrite (ZnFe2O4) thin films were prepared, using the electrospray technique, as photoabsorber material for photoelectrochemical water splitting. An enhanced photocurrent of 53 μA cm−2 at 1.23 V versus RHE was achieved, which is among the best results obtained for unmodified ZnFe2O4 photoanodes.