Abstract
The multilayer films consisting of graphene oxide and a cobalt complex were fabricated though electrostatic layer-by-layer self-assembly technique and characterized by UV–Vis absorption spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and cyclic voltammetry. The results demonstrated that the hybrid films were successfully prepared and exhibited good electrochemical activity. The film was also subjected to photoelectrochemical studies and were found to exhibit large cathodic photocurrent density of 6.1μA/cm2 while irradiated with 100mW/cm2 polychromatic light (730nm>λ>325nm) at an applied potential of −0.4V versus saturated calomel electrode.
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