Gradient doping of Cu(I) and Cu(II) in ZnO nanorod photoanode by electrochemical deposition for enhanced photocurrent generation

Nouasria, Fatima Zohra; Selloum, Djamel; Henni, Abdellah; Zerrouki, Djamal; Tingry, Sophie

doi:10.1016/j.ceramint.2021.03.312

Cited by 11 publications

(3 citation statements)

References 55 publications

(70 reference statements)

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“…In this section electrodeposited Cu2O thin films under optimized conditions studied above (pH= 12.5, E= -0.5 V vs. SCE, and t= 60 min) were used as a p-type layer with ZnO as n-type layer to construct a p-n heterojunction. ZnO was used in two cases pure and doped with copper (Cu2O/ZnO) and (Cu2O/Cu-doped ZnO) [62]. Figure 13 As can be seen in Figure 13 (a and b), We distinguish three layers corresponding to ITO glass substrate, ZnO (or Cu-doped ZnO), and Cu2O grown uniformly in the normal direction to the substrate surface.…”

Section: Test the Synthesized Cu2o Thin Filmsmentioning

confidence: 99%

In-Depth Study of Chemically Electrodeposited Cuprous Oxide (Cu2O) thin Films on ITO Glass

Nouasria,

Selloum,

Mokrani

et al. 2024

Plasmonics

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In this contribution, we report the screening of different parameters contributing to the electrodeposition of Cu2O nanostructures as an electrode material to provide an overall understanding of the effect of the entire method conditions. We varied different parameters (pH, potential, and deposition time) during the electrodeposition of cuprous oxide (Cu2O) thin films on ITO glass substrate and integrated different methods: X-ray diffraction (XRD), UV-vis absorption (UV-Vis), scanning electron microscope (SEM), cyclic voltammetry (CV), and chronoamperometry (CA) to deeply examine the as-synthesized materials and interrogate their efficiency towards the conversion of light to current (photo-current). From the chronoamperometry experiments, all the curves of current transients exhibit a typical response of a progressive 3D nucleation growth. Highly crystalline Cu2O structures of nano-cubes can be seen in the XRD and SEM results at high pH (12.5) and at potentials -0.5 and -0.6 V Vs. SCE during 60 min of deposition time. UV-Vis results showed high optical absorption in the region of 300-500 nm. The photocurrent measurements of Cu2O coupled with Cu-doped ZnO suggested that the synthesized Cu2O proved to be the best candidate as a solar cell.

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Section: Test the Synthesized Cu2o Thin Filmsmentioning

confidence: 99%

In-Depth Study of Chemically Electrodeposited Cuprous Oxide (Cu2O) thin Films on ITO Glass

Nouasria,

Selloum,

Mokrani

et al. 2024

Plasmonics

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“…They are classified into two categories: physical (sputtering, thermal evaporation, pulsed laser deposition, etc.) and chemical (chemical vapor deposition, electrochemical deposition, spray pyrolysis, chemical bath, and hydrothermal) processes [2,3] . Among these methods, the hydrothermal technique has attracted great attention because of its advantages such as low cost, low temperature, abundance of starting chemicals, it is considered a cost‐effective growth technique for the synthesis of various nanomaterial's and nanostructures.…”

Section: Introductionmentioning

confidence: 99%

“…and chemical (chemical vapor deposition, electrochemical deposition, spray pyrolysis, chemical bath, and hydrothermal) processes. [2,3] Among these methods, the hydrothermal technique has attracted great attention because of its advantages such as low cost, low temperature, abundance of starting chemicals, it is considered a cost-effective growth technique for the synthesis of various nanomaterial's and nanostructures. The hydrothermal deposition method has recently been used to synthesize highly crystallized and well-oriented ZnO NRs.…”

Section: Introductionmentioning

confidence: 99%

Influence of Zinc Salt Concentration on Structured ZnO Composition and Morphology

Al‐Rasheedi,

Shalaan,

Hassaneen

et al. 2023

ChemistrySelect

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In the present work, Zinc oxide nanorods (ZnO NRs) and Simonkolleite (Zn5(OH)8Cl22H2O) nanodisks were successfully prepared hydrothermally using zinc chloride as a zinc source salt. The molarity of the zinc salt was varied to investigate its effect on the structure of the synthesized nanostructures. X‐ray diffraction (XRD), scanning electron microscopy (SEM), UV‐visible optical transmittance, and photoluminescence were used to characterize the synthesized nanostructures. These results suggest that the morphology of the synthesized nanostructures was significantly influenced by the molarity of zinc chloride. We inferred that increasing zinc salt molarity above 0.01 M leads to a pure simonkolleite nanodisks. In contrast, ZnO NRs were formed at low concentrations.

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Investigation of the Effect of (Nd, Al) Co-doping on the Microstructure and Electrical Conductivity of ZnO

Liu

Chen

et al. 2022

J. Electron. Mater.

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Gradient doping of Cu(I) and Cu(II) in ZnO nanorod photoanode by electrochemical deposition for enhanced photocurrent generation

Cited by 11 publications

References 55 publications

In-Depth Study of Chemically Electrodeposited Cuprous Oxide (Cu2O) thin Films on ITO Glass

In-Depth Study of Chemically Electrodeposited Cuprous Oxide (Cu2O) thin Films on ITO Glass

Influence of Zinc Salt Concentration on Structured ZnO Composition and Morphology

Investigation of the Effect of (Nd, Al) Co-doping on the Microstructure and Electrical Conductivity of ZnO

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