The Effect of Deposition Time on the Properties of Cu2O Nanocubes Using an Electrochemical Deposition Method

A. Barzinjy, Azeez (2021) The Effect of Deposition Time on the Properties of Cu2O Nanocubes Using an Electrochemical Deposition Method. Journal of Electronic Materials, 49. pp. 7532-7540.

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Abstract

In this investigation, the impact of electrodeposition time on the photoelectrochemical characteristics of a cuprous oxide (Cu2O) nanocube semiconductor photoelectrode is investigated. The Cu2O nanocube photoelectrode was synthesized electrochemically, utilizing underpotential deposition (UPD). Numerous techniques, including x-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), ultraviolet–visible (UV–Vis) spectroscopy, linear sweep voltammetry (LSV) and chronoamperometry (CA), were utilized for characterization of the Cu2O nanocube photoelectrode. A highly crystalline structure of Cu2O nanocubes deposited on an indium tin oxide (ITO) substrate can be seen in the XRD results. SEM images revealed a cubic-shaped structure of Cu2O. However, EDX analysis and the optical bandgap confirmed the presence of uniform single-phase Cu2O nanocubes. Astonishingly, the Cu2O nanocube photoelectrode electrodeposited for 15 min possesses the highest photocurrent among all investigated films. Also, the Cu2O nanocubes displayed stable photocathodic performance as a result of the p-type nature. Moreover, the Cu2O nanocube photoelectrode is suggested to be a good candidate for progressive photoelectrochemical detection. Furthermore, it can be utilized for the expanded field of photoelectrochemical water splitting in addition to other solar photovoltaic devices.

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