Fig. 5. (a) j–V characteristics of all samples under visible light illuminations; (b) j–V characteristics of all samples without light illuminations. The red stars in (a, b) indicate the current density of TiO2/rGO/NiFe-LDH NRAs reported by Ning et al. under same voltage condition;36 (c) partial enlarged detail Nyquist plots under visible light at open circuit voltage of all decorated sample and the equivalent circuit for samples; (d) j–V characteristics for various combination of Ag, Ag2S and GO decoration on carbon paper under visible light illuminations.
