Fig. 4From: CdS Nanoparticle-Modified α-Fe2O3/TiO2 Nanorod Array Photoanode for Efficient Photoelectrochemical Water Oxidation a UV-vis absorption spectra and b PL spectra of TiO2 NR, Fe2O3/TiO2 NR, and CdS/Fe2O3/TiO2 NR samplesBack to article page