Deposition geometry effect on structural, morphological and optical properties of Nb2O5 nanostructure prepared by hydrothermal technique

A seed layer-assisted chemical bath deposition (SCBD) method at low temperature has been developed to growth uniform and high crystal quality cuprous oxide (Cu 2 O) nanoparticles on transparent conductive/glass substrates. These lms were grown on indium-doped tin oxide (ITO) as seed layer which deposited on glass substrates using magnetron sputtering-RF . The ITO seed annealing process by continuous beam (CW) of CO 2 laser was used prior to growing the Cu2O nanoparticles. In this study, controlled synthesis of Cu 2 O lms were investigated by controlling the growth temperature at 55, 60, 65, and 70 o C, respectively. The products of lms were characterized in detail by using eld emission scanning electron microscopy (FESEM), X-ray diffraction (XRD). Optical properties of this Cu 2 O nanoparticles were examined UV-Vis spectroscopy. The study suggests synthesis route for developing high quality Cu 2 O nanoparticles using SCBD method for optical and electronic applications.

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“…Fig. 1(c) indications the seeds growth of crystallized and polycrystalline is increased using laser treatment [57,58].…”

Section: Resultsmentioning

confidence: 92%

Seed Layer-Assisted Chemical Bath Deposition of Cu2O Nanoparticles on ITO-Coated Glass Substrates with Tunable Morphology, Crystallinity, and Optical Properties

Alsultany¹,

Alhasan

Salim

2021

J Inorg Organomet Polym

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“…et al [4] detailed evaluation of WO3-nanoplate can decrease the energy gap of the film, but the value obtained was much greater than our value. A variety of techniques have been used to create WO3 thin films, including thermal evaporation [23], laser deposition [24], Radio-frequency sputtering [25], Electron beam deposition or evaporation [26], Anodic oxidation [27], sol-gel [28], hydrothermal [29,30], spray pyrolysis [31], as well as others. In this study, the spray pyrolysis technique was used for the preparation of the film because it is an easy, effective, and non-vacuum coating approach that enables the creation of huge areas of thin films at a low cost.…”

Section: Introductionmentioning

confidence: 99%

Effect of Precursor Concentration on the Structural, Optical, and Electrical Properties of WO3 Thin Films Prepared by Spray Pyrolysis

Mohammed¹,

Salim²,

Hassan³

et al. 2022

JASN

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Using a chemical spray technique, an n-type WO3 polycrystalline thin film was prepared with optimizing parameters (molarity concentration of 80 mM and a substrate temperature of 350 °C). Study the physical properties of WO3 thin film via UV-Visible spectroscopy, XRD, Field Emission-Scanning Electron Microscope, Energy Dispersive X-ray Spectroscopy, Atomic Force Microscopy, and current-voltage. Tungsten oxide was deposited on glass surfaces at different molarities ranging from 50-90mM. In the UV-Visible spectrum of the WO3 thin film, it was found that the transmittance, reflectivity, and energy gap decreased (78%-53%), (9.63%-5.02%), and (3.40eV-2.63 eV), respectively. The X-ray diffraction of the WO3 film at the optimized was poly-crystalline and had a monoclinic phase, and the preferred orientation (hkl) was 200 at 2 = 24.19. From the image FESEM and EDX, it was found that it has a multi-fibrous network. The average diameter of the fiber is 266 nm, and the ratio of tungsten to oxygen (W/O) is 2.6, with a stoichiometric of 68.6% at the 80 mM concentration. The Atomic Force Microscopy shows that the WO3 thin layer has a nanostructure. The average surface roughness was 5.3 nm, and the Root Mean Square was 8.6 nm. The WO3 film had the lowest resistivity value of 2.393 × 108 cm, and the activation energy was 0.298 eV, among the parameter of the current voltage at substrate temperature and concentration optimum.

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“…Nanotetrapods (Tubular tetrapod magnesium oxide (tt-MgO) can be synthesized by thermal evaporation of Mg metal powder with a pre-grown tetrapod ZnO template.) [20] Hierarchical nanostructure (also 3D hierarchical flowerlike MgO microstructure (HFl-MgO), which was synthesized by chemical precipitation method [21,22]. Hollow mesoporous MgO nanospheres (HMMN) have been demonstrated by the coating of carbon spheres template with MgO nanoparticles, then the calcination in the presence of air to remove the carbon core at elevated temperature [23].…”

Section: Introductionmentioning

confidence: 99%

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

Abdul-Hamead

Othman

Fakhri

2021

J Mater Sci: Mater Electron

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Various nanoparticles have been developed for bio-applications. However, nanocomposites particles, (NCPs) with effective and ability to sensing cholesterol, are still needed. Herein, we present new cholesterol and pH-responsive NCPs as sensor particles to promote sensitivity. The traditional method of mixing and grinding was used to fabricate the oxides of magnesium and manganese MgO–MnO 2 NCPs with different mixing ratios. Structural properties, detection of cholesterol, and pH sensitivity were examined. Results propped the high efficiency of MgO–MnO 2 NCPs compared with individual oxides (MgO and MnO 2 ), low response time, while the analytical results confirmed the homogeneous structure of MgO–MnO 2 NCPs. Particle size distribution results for NCPs were within 16.4 to 100 nm, which makes it promising in medical and bio-applications.

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Deposition geometry effect on structural, morphological and optical properties of Nb2O5 nanostructure prepared by hydrothermal technique

Cited by 46 publications

References 62 publications

Seed Layer-Assisted Chemical Bath Deposition of Cu2O Nanoparticles on ITO-Coated Glass Substrates with Tunable Morphology, Crystallinity, and Optical Properties

Seed Layer-Assisted Chemical Bath Deposition of Cu2O Nanoparticles on ITO-Coated Glass Substrates with Tunable Morphology, Crystallinity, and Optical Properties

Effect of Precursor Concentration on the Structural, Optical, and Electrical Properties of WO3 Thin Films Prepared by Spray Pyrolysis

Preparation of MgO–MnO2 nanocomposite particles for cholesterol sensors

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