Fig. 3From: Enhancing Water-Splitting Efficiency Using a Zn/Sn-Doped PN Photoelectrode of Pseudocubic α-Fe2O3 NanoparticlesX-ray photoelectron spectroscopy (XPS) analysis of the Zn/Sn-doped p-n pseudocubic Fe2O3 photoelectrode: a survey XPS spectrum; b Fe 2p; and c Zn 2pBack to article page