Preparation and Characterization of Cu&lt;sub&gt;2&lt;/sub&gt;O Thin Films by Electrodeposition

Yu, Xinbo; Zhang, A Man; Zhang, Jian; Zhao, Jie; Yao, Bing; Liu, Guang Jun

doi:10.4028/www.scientific.net/amr.413.371

AMR

2011

DOI: 10.4028/www.scientific.net/amr.413.371

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Preparation and Characterization of Cu<sub>2</sub>O Thin Films by Electrodeposition

Xinbo Yu

A Man Zhang

Jian Zhang

et al.

Abstract: Cu2O thin films is preparated through electrodeposition with conductive glass of coating indium tin oxide as work electrode.The effects of various factor upon Cu2O film morphology are investigated.The best conditions of electrodeposition Cu2O film are discussed.The deposition potential is determined by Linear sweep voltammetry.The results indicate that when pH is 5.50~ 6.00, the concentrations of Cu (CH3COO)2 is 0.015 ~ 0.04 mol/L,and the deposition potential is-0.075 ~ 0.225 V (vs SCE),Cu2O thin films morphol… Show more

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One‐Step Electrochemical Fabrication of Reduced Graphene Oxide/Cuprous Oxide Nanocomposite Thin Films for Enhanced Photoelectrochemical Properties

Çepni̇

Doğan

2020

Physica Status Solidi (a)

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For the first time, the electrochemical growth of reduced graphene oxide/cuprous oxide (Cu2O) (ERGO/Cu2O) nanostructures on indium tin oxide (ITO) electrode is induced by a new approach based on simultaneous coreduction of copper ions and graphene oxide (GO) from an aqueous suspension without using any binders, surfactant, and reducing reagents. Characterization of ERGO/Cu2O nanocomposite films is carried out using X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), energy‐dispersive spectroscopy (EDS), and scanning electron microscopy (SEM) techniques. The p‐type semiconductor of Cu2O‐decorated ERGO nanosheets is used as a photocatalyst for efficient solar hydrogen production under visible‐light irradiation. The ERGO/Cu2O nanocomposite electrode exhibits a good photocatalytic activity toward photovoltaic applications in terms of high current density (4.3 mA cm−2), which is ≈40 and 800 times higher than those of the Cu2O‐ and ERGO‐modified ITO electrodes, respectively. The resulting ERGO/Cu2O nanocomposite photoelectrode exhibits good photovoltaic properties and can be used for applications in solar energy conversion.

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One‐Step Electrochemical Fabrication of Reduced Graphene Oxide/Cuprous Oxide Nanocomposite Thin Films for Enhanced Photoelectrochemical Properties

Çepni̇

Doğan

2020

Physica Status Solidi (a)

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Microstructure and optical properties of nanocrystalline Cu2O thin films prepared by electrodeposition

et al. 2014

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Cuprous oxide (Cu2O) thin films were prepared by using electrodeposition technique at different applied potentials (−0.1, −0.3, −0.5, −0.7, and −0.9 V) and were annealed in vacuum at a temperature of 100°C for 1 h. Microstructure and optical properties of these films have been investigated by X-ray diffractometer (XRD), field-emission scanning electron microscope (SEM), UV-visible (vis) spectrophotometer, and fluorescence spectrophotometer. The morphology of these films varies obviously at different applied potentials. Analyses from these characterizations have confirmed that these films are composed of regular, well-faceted, polyhedral crystallites. UV–vis absorption spectra measurements have shown apparent shift in optical band gap from 1.69 to 2.03 eV as the applied potential becomes more cathodic. The emission of FL spectra at 603 nm may be assigned as the near band-edge emission.

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Preparation and Characterization of Cu<sub>2</sub>O Thin Films by Electrodeposition

Cited by 2 publications

References 4 publications

One‐Step Electrochemical Fabrication of Reduced Graphene Oxide/Cuprous Oxide Nanocomposite Thin Films for Enhanced Photoelectrochemical Properties

One‐Step Electrochemical Fabrication of Reduced Graphene Oxide/Cuprous Oxide Nanocomposite Thin Films for Enhanced Photoelectrochemical Properties

Microstructure and optical properties of nanocrystalline Cu2O thin films prepared by electrodeposition

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