Electrochemical deposition and characterization of copper-cobalt oxide layers by electrodeposition

The copper-cobalt oxide (Cu2CoO3) was successfully elaborated on indium tin oxide (ITO) substrate using the co-electrodeposition method in citric acid (C6H8O7) solution at a temperature of 70 °C. The co-electrodeposition process of Cu2CoO3 thin films was realized by the electrochemical technique: cycle voltammetry. In this work, the effect of the cycle number on the cyclic voltammetry (CV), structural, and morphological of the Cu2CoO3 thin films were discussed. The (CV) showed that the current density of the co-electrodeposition of Cu2CoO3 decreases with the number of cycles. The X-ray diffraction (XRD) analysis revealed that the co-electrodeposition copper-cobalt oxide (Cu2CoO3) nanocrystallites with orthorhombic crystal structures. The analysis of the morphological surface by scanning electron microscopy (SEM) of copper-cobalt oxide indicated the formation of two types of crystals of different shapes: pyramidal and spherical corresponding to CoO2 and Cu2O respectively. [Display omitted] •In this work, cyclic voltammetry was used to elaborate the co-deposition of copper-cobalt oxide by electrodeposition technic.•The effect of cycle number was investigated and optimized on electrochemical, structural, and morphological.