Effect of complexing agent and deposition time on structural, morphological, optical and electrical properties of cuprous oxide thin films prepared by chemical bath deposition

Reyes-Vallejo, O.; Escorcia‐García, J.; Sebastián, P.J.

doi:10.1016/j.mssp.2021.106242

Cited by 25 publications

(4 citation statements)

References 34 publications

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“…In this work, the formation process of copper oxide on ZnO NRs under nitrogen and air annealing conditions was first explored by scanning electron microscopy (SEM). Previous studies have shown that appropriate annealing helps eliminate impurities, enhances crystallinity, and increases the grain size of copper oxide layers grown by CBD [42][43][44]. Here, we focus on elucidating the morphological evolution of copper oxide coatings by annealing over a temperature range of 100-400 • C under air or N 2 gas conditions.…”

Section: Influence Of Annealing Conditions On the Sem Morphology And ...mentioning

confidence: 99%

Tailored Nanoscale Architectures for White Light Photoelectrochemistry: Zinc Oxide Nanorod-Based Copper Oxide Heterostructures

Fu,

Chen,

et al. 2023

Coatings

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This study investigates the morphological evolution, optical properties, and photoelectrochemical (PEC) performance of copper-oxide-coated ZnO nanorods under different annealing conditions. Distinct effects of annealing temperature and atmosphere on Cu2O and CuO growth on ZnO nanorods were observed. SEM images revealed the transformation of Cu2O from silk-like to mushroom-like structures, while CuO formed interconnecting nanomaterials. XRD and XPS analyses showed peak shifts and binding energy changes, highlighting structural and electronic modifications induced by annealing. Moreover, PEC measurements demonstrated the superior photoresponse of CuO-coated ZnO nanorods, especially under negative bias, attributed to favorable band structure, charge carrier separation, and annealing stability compared to Cu2O-coated ones. A noteworthy discovery is that ZnO nanorods coated with CuO nanostructures, prepared under air conditions at 400 °C annealing temperature, exhibit exceptional photocurrents. Applying a 0.4 V voltage increases the photocurrent by approximately 10 mA/cm2. The findings provide valuable insights into tailoring metal oxide semiconductor nanostructures for potential applications in diverse areas, including photoelectrochemistry. This study offers practical guidance on modulating nanostructure growth through annealing to enhance performance. The results hold significance for PEC water splitting and have far-reaching impacts on photocatalysis, environmental remediation, and solar cells.

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Section: Influence Of Annealing Conditions On the Sem Morphology And ...mentioning

confidence: 99%

Tailored Nanoscale Architectures for White Light Photoelectrochemistry: Zinc Oxide Nanorod-Based Copper Oxide Heterostructures

Fu,

Chen,

et al. 2023

Coatings

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“…In order for this material to be used in such a variety of fields, it must be produced in a costeffective and environmentally friendly manner. Various deposition methods have been developed to fabricate for doped and undoped CuO nanostructures for instances; electrochemical deposition [8,9], physical vapor deposition [10,11], sol gel immersion [12,13] and sol-gel pin coating [14,15] deposition, radio frequency sputtering deposition [16,17] and chemical bath deposition [17,18]. The chemical bath deposition method (CBD) offers many advantages for the production of thin films, including simplicity, proportional control of elements, cost-effectiveness, and deposition feasibility on large-area substrates.…”

Section: Introductionmentioning

confidence: 99%

Solution‐based fabrication of copper oxide thin film influence of cobalt doping on structural, morphological, electrical, and optical properties

ÇETİNKAYA

2024

Turkish Journal of Engineering

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In this study, Cobalt (Co) doped Copper Oxide (CuO) films at different concentrations were deposited on glass substrates, using the Chemical Bath Deposition method. The films were characterized by Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction XRD), Ultra Violet-Visible Spectroscopy (UV-Vis.) and two-point contact method. The SEM showed that nanoplates formed increased in size and voids on the films surface decreased with increasing Co concentration. The XRD patterns revealed an increase in crystallite size with increasing (from 14.40 to 18.60 nm) Co concentration and no secondary phase was formed. The EDS spectra showed the presence of Co in the film composition with increasing concentration. The results of UV-Vis. spectroscopy showed that transmittance and band gap values could be changed with Co doping and thus the CuO band gap could be adjusted with the Co doping. The temperature-dependent current-voltage measurement results obtained with the two-point contact method showed that activation energy levels increased (from 0.134 to 0.232 eV) with increasing Co concentration. It was also observed that the conductivity increased with increasing temperature.

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“…Thin films and nanostructures of Cu 2 O have attracted great attention due to potential applications in photo voltaic devices, electrode material, sensors, catalysis, light emitting diodes, photoelectrochemical water splitting applications, hole-transporting layer in solar energy conversion devices and as a light-absorbing material [9][10][11]. Besides, it possesses many other interesting optoelectronic properties such as low cost, low electron affinity (3.2 eV), high hole mobility (256 cm 2 /V), high absorption coefficient in the visible region (>104 cm −1 ), and high minority carrier diffusion length (10-100 nm) which make it a promising material for use in spintronics, thin film transistors and nano-electronics [12]. Among others, Cu 2 O is considered as parent compound of all the Cu-based semiconducting materials such as LnCuOCh (Ch = chalcogenite, Ln = lanthanide,), CuMO 2 delafossite (with M = Al, Ga, In, Cr, B) and SrCu 2 O 2 (alloying with an alkaline-earth oxide, SrO).…”

Section: Introductionmentioning

confidence: 99%

Influence of Vanadium substitution on electronic, thermoelectric and optical response of Cu₂O

Malik,

Fakhr-e-Alam,

Aslam

et al. 2023

Phys. Scr.

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Cu2O semiconductor attained much research interest due to excellent electronic and optical response. In this work, Vanadium-doped Cu2O compositions were studied for electronic, thermoelectric, and optical response using density functional theory. The thin films were experimentally fabricated using the chemically derived spin coating method. The X-ray diffraction analysis revealed the growth of crystalline thin films with cubic structure having space-group 224-Pn-3m. The scanning electron micrographs exhibit the uniform grain growth with well-defined grain boundaries for pure Cu2O films. Density of states spectra display the maxima for O-2p and Cu-3d while V-3d states occupied the conduction band. The value of the experimental band gap for pure Cu2O is estimated as 2.02 eV and found to decrease with V-doping. The Seebeck coefficient and specific heat are found to increase with the increment in V-doping content due to thermal fluctuations. A steady increase is observed in real epsilon with the increase in energy and dopant concentration.

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Effect of complexing agent and deposition time on structural, morphological, optical and electrical properties of cuprous oxide thin films prepared by chemical bath deposition

Cited by 25 publications

References 34 publications

Tailored Nanoscale Architectures for White Light Photoelectrochemistry: Zinc Oxide Nanorod-Based Copper Oxide Heterostructures

Tailored Nanoscale Architectures for White Light Photoelectrochemistry: Zinc Oxide Nanorod-Based Copper Oxide Heterostructures

Solution‐based fabrication of copper oxide thin film influence of cobalt doping on structural, morphological, electrical, and optical properties

Influence of Vanadium substitution on electronic, thermoelectric and optical response of Cu₂O

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Effect of complexing agent and deposition time on structural, morphological, optical and electrical properties of cuprous oxide thin films prepared by chemical bath deposition

Cited by 25 publications

References 34 publications

Tailored Nanoscale Architectures for White Light Photoelectrochemistry: Zinc Oxide Nanorod-Based Copper Oxide Heterostructures

Tailored Nanoscale Architectures for White Light Photoelectrochemistry: Zinc Oxide Nanorod-Based Copper Oxide Heterostructures

Solution‐based fabrication of copper oxide thin film influence of cobalt doping on structural, morphological, electrical, and optical properties

Influence of Vanadium substitution on electronic, thermoelectric and optical response of Cu2O

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Influence of Vanadium substitution on electronic, thermoelectric and optical response of Cu₂O