Fig. 7From: CdS Nanoparticle-Modified α-Fe2O3/TiO2 Nanorod Array Photoanode for Efficient Photoelectrochemical Water Oxidation a EIS spectra measured at a bias potential of 1.2 V under illumination and b Mott-Schottky plots collected at a frequency of 1 KHz in the dark for the TiO2 NR, Fe2O3/TiO2 NR, and CdS/Fe2O3/TiO2 NR samplesBack to article page