The Effect of Deposition Time on the Properties of Cu 2 O Nanocubes Using an Electrochemical Deposition Method
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https://doi.org/10.1007/s11664-020-08495-y Ó 2020 The Minerals, Metals & Materials Society
The Effect of Deposition Time on the Properties of Cu2O Nanocubes Using an Electrochemical Deposition Method SHIVAN JAWHAR TAHER ,1 AZEEZ ABDULLAH BARZINJY and SAMIR MUSTAFA HAMAD 4,5
,2,3,6
1.—Pharmacy Department, Medical Institute, Erbil Poly Technique University-Erbil, Erbil, Iraq. 2.—Department of Physics, College of Education, Salahaddin University-Erbil, Erbil, Iraq. 3.—Department of Physics, Education, Faculty of Education, Tishk International University, Erbil, Iraq. 4.—Scientific Research Centre, Soran University, Soran 44008, Erbil, Iraq. 5.—Computer Department, Cihan University-Erbil, Erbil, Iraq. 6.—e-mail: [email protected]
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 singlephase 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. Key words: Cuprous oxide, electrochemical deposition, deposition time, underpotential deposition, photo-electrochemistry
INTRODUCTION Electrochemistry deals with chemical changes related to charge splitting, typically in a liquid medium.1 The splitting of charge is frequently associated with charge transmission, which might happen evenly in solution among diverse chemical classes, or heterogeneously on electrode surfaces.2 Accordingly, it can be seen that its requirements are
(Received June 11, 2020; accepted September 16, 2020)
exceedingly widespread among the investigators. Above the electrode surfaces, the oxidation and reduction half replies are divided in space, typically happening at diverse electrodes submerged in solution.3 The electrodes are connected through conducting routes together in solution, using ionic transportation. Once the totality of the Gibbs energy altered correspondingly
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