Fig. 5From: Enhanced photoelectrocatalytic performance of α-Fe2O3 thin films by surface plasmon resonance of Au nanoparticles coupled with surface passivation by atom layer deposition of Al2O3 a Mott–Schottky plots of five different electrodes at a fixed frequency of 1 kHz in 1 M KOH solution under dark condition; b charge carrier density (ND) obtained from Mott-Schottky analysis, c Nyquist plots of five electrodes in 1 M KOH solution under dark conditionBack to article page