Surfactant assisted chemical bath deposition based synthesis of 1-D nanostructured CuO thin films from alkaline baths

Muiva, Cosmas M.; Juma, Albert; Lepodise, Lucia M.; Maabong, Kelebogile; Letsholathebe, Douglas

doi:10.1016/j.mssp.2017.05.007

Cited by 19 publications

(10 citation statements)

References 24 publications

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“…An increase in TX-100 concentration (1.0 M%) resulted in rise of crystallite size value (19.58 nm). This change in the crystallite sizes might be due to lattice expansion of CuO films when surfactant is added in aqueous solution [22,34]. This result can also be verified by SEM analysis.…”

Section: Xrd Studiessupporting

confidence: 59%

“…The optoelectronic, electrical, structural and morphological properties of the nanostructured films can be enhanced by using surfactants in the aqueous solutions. The supplement of surfactant in synthesis solution decreases the surface strain of the solution and checks the formation of new crystal structures [19][20][21][22]. Among these surfactant diversities Triton-X 100 (TX-100) with the chemical equation (C14H22O(C2H4O)n) is one of the non-ionic surfactants.…”

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confidence: 99%

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Enhancement Physical Performance of Nanostructured CuO Films via Surfactant TX-100

Aydın

Şahin

2018

SDÜ Fen Bil Enst Der

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Abstract:In this study, we informed a systematic approach to obtain CuO films with and without TX-100 surfactant by the SILAR procedure. Morphological, structural and optical features of the CuO films were researched by metallurgical microscope, scanning electron microscopy, X-ray diffraction analysis and ultraviolet-visible spectrophotometry respectively with respect to concentrations of TX-100 agent. Metallurgical and scanning electron microscope photographs displayed that the morphology of the film surface was impressed by surfactant TX-100. X-ray diffraction patterns verified that all CuO films have monoclinic crystal lattice structure with preferential orientations of ( 1 11) and (111) planes. Ultraviolet-visible spectra demonstrated that the optical bandgap and transmittance values of the films were altered with TX-100 content. Nanoyapılı CuO Filmlerin Fiziksel Performansının Surfaktan TX-100 Yoluyla GeliştirilmesiAnahtar Kelimeler Bakır Oksit (CuO), Triton X-100, XRD, Bant AralığıÖzet: Bu çalışmada TX-100 surfaktan içeren ve içermeyen CuO filmler sistematik bir yaklaşım gözeterek SILAR yöntemi yardımıyla elde edilmişlerdir. Elde edilen CuO filmlerinin morfolojik, yapısal ve optik özellikleri, TX-100 konsantrasyonuna bağlı olarak sırasıyla metal mikroskobu, taramalı elektron mikroskobu, X-ışını difraksiyon analizi ve ultraviyole-görünür spektrometresi ile incelendi. Metal ve taramalı elektron mikroskobu fotoğrafları, film yüzey morfolojisinin yüzey aktif madde TX-100 tarafından etkilendiğini ortaya koydu. X-ışını kırınım desenleri, tüm CuO filmlerinin (1 11) ve (111) düzlemlerin tercihli yönelimleriyle monoklinik kristal kafes yapısına sahip olduğunu doğruladı. Ultraviyole -görünür spektrum, filmlerin optik bant boşluğu ve geçirgenlik değerlerinin TX-100 içeriği ile değiştiğini gösterdi.

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Section: Xrd Studiessupporting

confidence: 59%

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confidence: 99%

Enhancement Physical Performance of Nanostructured CuO Films via Surfactant TX-100

Aydın

Şahin

2018

SDÜ Fen Bil Enst Der

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“…This work takes advantage of previous research [20,21], and similar calculations were made to develop the analytical model, providing the solubility and species distribution diagrams (SDs and SDDs) that help us to predict the chemical conditions for the deposition of the CuO films by the microwave activated chemical bath method (MWCBD). The stability constant of the equations from (1) to (11) is given as 25 • C and infinite dilution (25 • , 0). The mass balance of the used reactant and the charge balance of the solution are as follows:…”

Section: Physical-chemical Analysis Solubility and Species Distributi...mentioning

confidence: 99%

“…Aqueous ammonia (NH 4 OH) plays an important role because it provides the NH 4 + and OH − ions that are required for CuO growth in the solution. CuO film deposition by CBD needs a metal salt as a copper source and a complexing agent; copper nitrate, sulfate, chloride, and acetate are frequently used as a metal source, while aqueous ammonia, sodium hydroxide, and ammonium persulfate are used as complexing agents [9][10][11]. In the literature, a chemical route for depositing the CuO film is explained; however, the CBD growing mechanism is not completely clear and only is explained through the aqueous intermediate Cu(OH) 2 species.…”

Section: Introductionmentioning

confidence: 99%

Copper Oxide Films Deposited by Microwave Assisted Alkaline Chemical Bath

et al. 2021

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Copper oxide (CuO) films were deposited onto glass substrates by the microwave assisted chemical bath deposition method, and varying the pH of the solution. The pH range was varied from 11.0 to 13.5, and the effects on the film properties were studied. An analytical study of the precursor solution was proposed to describe and understand the chemical reaction mechanisms that take place in the chemical bath at certain pH to produce the CuO film. A series of experiments were performed by varying the parameters of the analytical model from which the CuO films were obtained. The crystalline structure of the CuO films was studied using X-ray diffraction, while the surface morphology, chemical composition, and optical band-gap energy were analyzed by scanning electron microscopy, X-ray photoelectron spectroscopy, and UV–Vis spectrophotometry, respectively. The CuO films obtained exhibited a monoclinic crystalline phase, nanostructured surface morphology, stoichiometric Cu/O ratio of 50/50 at%, and band-gap energy value of 1.2 eV.

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“…The transmittance spectrum of copper oxides zigzag GLAD films deposited at = 85° shows a good interference pattern which indicates that the film exhibits an acceptable homogeneity of thickness and a sharp fall of transmittance at the band edge. The degree of slanting at the absorption edge can relate to possible differences in the distribution of defect tail states below the band gap[37].…”

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Effect of angle deposition γ on the structural, optical and electrical properties of copper oxide zigzag (+γ, −γ) nanostructures elaborated by glancing angle deposition

et al. 2018

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In this work, Cu x O thin films were obtained by air annealing of copper thin films deposited on glass substrates using thermal evaporation method by Glancing Angle Deposition "GLAD" technique. The copper was sculptured into a zigzag shape, which presents two columns with inclined angles + and-where is the deposition angle between the incident flux and the substrate normal. Morphological, structural, optical and electrical properties of the obtained thin films were investigated using X-ray diffraction (XRD), UV-Vis-NIR Spectroscopy and electrical resistivity measurements. The XRD patterns revealed that thin films deposited at different incident angles are mainly crystallized in Cu 2 O cubic phase characterized by the preferential orientation along (111) plane. The optical parameters were calculated from the analysis of the transmittance and reflectance spectra in the wavelength range 300-1800 nm. Theabsorptioncoefficient exceeds 10 5 cm-1 in the visible and NIR spectral ranges. Direct band gap energy increases from 2 to 2.54 eV with deposition angle. The in-plane birefringence and the anisotropic resistivity of the Cu 2 O films were also studied. Their maxima were obtained at incident flux angle of = 60°. Therefore, the GLAD technique is a promising way to create zigzag nanostructures with enhanced anisotropic properties.

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Surfactant assisted chemical bath deposition based synthesis of 1-D nanostructured CuO thin films from alkaline baths

Cited by 19 publications

References 24 publications

Enhancement Physical Performance of Nanostructured CuO Films via Surfactant TX-100

Enhancement Physical Performance of Nanostructured CuO Films via Surfactant TX-100

Copper Oxide Films Deposited by Microwave Assisted Alkaline Chemical Bath

Effect of angle deposition γ on the structural, optical and electrical properties of copper oxide zigzag (+γ, −γ) nanostructures elaborated by glancing angle deposition

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