Preparation and study of the Structural, Morphological and Optical properties of pure Tin Oxide Nanoparticle doped with Cu

Thin films of Sn1-xCdxS nanocrystals (X=0,0.7, and 1) with different thicknesses 200, 300, and 400 nm were prepared on glass bases at 300 C by the participation method and chemical spray pyrolysis method (CSP). The effect of the concentration of Sn and thickness on the structural and optical properties of the prepared films was studied. The films were characterized to evaluate the structure, transmittance, and optical energy band gap. X-ray diffraction (XRD) studies showed that the films were polycrystalline with hexagonal and orthogonal structures. XRD and atomic force measurement results showed that the grain size increases with its thickness. The optical band gap energies and optical transmission and absorption types of the membranes were determined from the optical transmittance spectra. Optical absorption studies in the wavelength range 200-1100 nm showed that the energy gap values of the films decrease from 2.48-1.95 eV, 2.41-1.92 eV, and 2.3- 1,89 eV with increasing Sn concentration and with increase the thickness 200, 300, and 400 nm respectively. The best properties of the prepared material were determined for its possible use in the manufacture of solar cells.

“…We notice that the curve tends to saturate. This is agreed upon by the researcher 29 , as well as the researcher 30 , while Fig. 4 shows the absorption spectrum.…”

Section: Table2 Variation Of Grain Size and Average Diameter Of CD X Snsupporting

confidence: 67%

Effect of Thickness on Structural, Morphological, and Optical Properties for Nanocrystalline Thin Films of Cd1-xSnxS, for Optoelectronic Applications

Abbas

2024

“…The broadening of diffraction lines may signify the nanoscale character of the component crystallites; Eq. 3 refers to Scherrer equation [29][30][31] :…”

Section: Figure 3 Xrd Patterns Of the Cuco2o4 Following Calcination A...mentioning

confidence: 99%

Preparing of CuCo2O4 compound by Sol-gel method and studying its structural properties

Yousef,

Ismail

2024

The CuCo2O4 compound has been prepared by the Sol-gel method starting with cobalt sulfate CoSO4.7H2O and copper nitrate, using Pectin as a stabilizer. The samples have been annealed at different temperatures (400-1000°C) to produce CuCo2O4. Thermo-gravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), Scanning Electron Microscope (SEM) and X-ray diffraction (XRD) techniques have been used to characterize the compositional properties of the prepared compound. The optimum temperature for synthesis is found at 600°C. According to X-ray diffraction patterns, CuCo2O4 spinel has a face-centered cubic crystal (FCC) and belonged to the Fd3m space group. The lattice constants, unit cell volume, and number of formulas have been calculated. Their values are 8.044 Å, 520.49 Å3, and 8, respectively. It is found that the grain size of the compound is 17.4nm. The experimental results for d corresponded to the reference card values with an accuracy of 99.5% as a minimum. The theoretical and experimental density of the prepared compound have been calculated and the results are approximately identical. The differential thermal analysis curves showed five thermal effects, the most important of which are the exo-thermal peak at 390°C and end-thermal peak at 740°C, which indicate to start forming and decomposition of Cu respectively. The IR spectroscopy encouraged our results during the bonding vibrations of Co-O, Cu- O.

“…Nanostructure materials with intermediate sizes of 1-100 nm can be further altered 1 . The decrease in size to the nanoscale range improved the ratio of surface-to-volume (and hence surface energy), adsorption capacity, and biological efficacy 2,3 Furthermore, Nanomaterials' physical and chemical characteristics, such as permeability, toughness, coloring, and solubility, as well as optic, magnetism, and thermal properties, have improved greatly 4 . Other unique properties of nanoparticles include chemical, mechanical, and kinetic stability, as well as decreased density innovative nanostructured materials and nanocomposites 5 , without a doubt, offer a wider variety of applications and superior performance than their macro/bulk counterparts.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Sol-Gel and Green Synthesis Technique Using Orange Peel Extract to Prepare TiO2 Nanoparticles

Oleiwi,

Rahma,

Salih

et al. 2024

Plant extracts have been widely explored as a safer alternative to conventional procedures for the manufacture of metal oxide nanoparticles. The present research concentrated on the synthesis and characterization of Titanium dioxide nanoparticles (TiO2NPs) using an environmentally friendly green synthesis approach (orange peel extract) compared with another technique (Sol-Gel method) at room temperature. The TiO2 nanoparticles were analyzed using an X-ray Diffraction (XRD) to determine the polycrystalline with Tetragonal structure anatase phase and average crystallite size 30.2 nm and 24.2nm of the sample prepared from Sol-gel and green methods respectively. FTIR spectroscopy was used to determine the functional groups of TiO2 nanoparticles and their bonding nature. UV-Vis for optical properties shows the band gap energy of 2.85 eV and 3 eV for TiO2 nanoparticles were prepared using sol-gel and green methods respectively. FESEM analysis identified the morphology of the surface of TiO2 nanoparticles with the diameters of nanoparticles in the range of 60-80 nm and 75-85 nm were prepared via sol-gel and green methods respectively.