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Polymer Science
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(2023)
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Polymer Science
Alhulw H. Alshammari et al.
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Article
Engineering, Electrical & Electronic
A. M. El-Naggar et al.
Summary: This study investigated the impact of Er doping on cation distribution, lattice parameter, crystallite size, and microstrain of single spinel ferrite phase CoFe2-xErxO4 with a cubic structure using Rietveld refinement. The nanofillers integration, miscibility, and surface morphology of PVA/PVP/PEG blended polymer were examined using X-ray diffraction and SEM techniques. Diffuse reflectance data analysis showed a reduction in optical band gap value from 5.14 eV to a value between 4.87 and 5.09 eV depending on the amount of Er in the nanofiller CoFe2-xErxO4. The effect of changing Er content on linear and nonlinear optical parameters and emitted fluorescence colors was discussed, along with the inspection of AC electrical characteristics, dielectric constant, and electric modulus of the blends.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
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Engineering, Electrical & Electronic
A. M. El-naggar et al.
Summary: Undoped and doped PVA/CMC/PVP polymer blends with ZnS/Co were studied, and the influence of calcination temperature of the nanofiller on the structure and morphology of the blends was explored. The possibility of using the doped blend as UV-blocking materials was examined. The optical and electrical properties of the doped blend at different calcination temperatures were investigated.
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Zein K. Heiba et al.
Summary: Polyvinyl chloride (PVC)/TiO2/x wt% tetrabutylammonium iodide (TBAI) polymers were prepared and their structure and characteristics were investigated. The loading of TiO2 and TBAI in PVC matrix was examined using various techniques. The impact of TiO2 and TBAI on the surface morphology of PVC was studied through SEM analysis. The potential use of PVC/TiO2/TBAI in UV shielding was explored, and the optical properties and luminescence intensity of the materials were enhanced by the addition of TiO2 and different weight percentages of TBAI.
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A. M. El-naggar et al.
Summary: Casting and solid-state reaction methods were used to prepare composites of PVA/CMC/PEG/x wt% Zn0.9Cu0.1S (x = 0, 1, 3, 5, 10). The nanofiller Zn0.9Cu0.1S was investigated using XRD Rietveld analysis. Various techniques such as XRD, FTIR, SEM, and EDS were employed to study the structural and morphological changes in the PVA/CMC/PEG blend when loaded with different amounts of Zn0.9Cu0.1S. The filler content (x) had an impact on the linear and nonlinear properties of the host blend, including changes in optical band gaps, fluorescence intensity, emitted colors, and dielectric properties.
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Polymer Science
A. M. El-Naggar et al.
Summary: Doping mixed polymers with appropriate fillers is believed to be the most efficient method to create novel materials for optoelectronic applications. Undoped and doped PVC polymers with ZnS/Mn were fabricated at different temperatures, and their structure and microstructure were analyzed. The distribution of the nanofiller in the PVC matrix was determined using various techniques, and the effect of preparation temperatures on the optical properties of the PVC polymer was studied. Doping with ZnS/Mn decreased the optical band gaps and enhanced fluorescence intensity in the PVC.
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Ali Badawi et al.
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M. M. Abdelhamied et al.
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Rasheed N. Abed et al.
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Ebtesam M. Alharbi et al.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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A. M. El-naggar et al.
Summary: Nanocomposite PVA/PEG/PVP/SnS2/V films were prepared via thermolysis and casting procedures, and their thermal stability was improved. The effects of doping on optical parameters and emitted colors were investigated. It was found that the nonlinear optical parameters were effectively improved with increasing percentage of SnS2/V dopant.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
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Materials Science, Multidisciplinary
A. M. El-naggar et al.
Summary: In this study, PVA/CMC/PVP/CdS0.9M0.1 composites were prepared and characterized. Loading CdS0.9M0.1 had a significant impact on the optical parameters and emitted fluorescence features of the PVA/CMC/PVP blend.
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Mai S. Ismail et al.
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S. Suvarna et al.
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Tiago B. Tavares et al.
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