Effect of doping and changing of the annealing temperature on the structural and optical properties of ZnS

Mohamed, Mohamed Bakr

doi:10.1111/ijac.13336

Cited by 18 publications

(3 citation statements)

References 52 publications

(104 reference statements)

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“…It was found that the optical band gap of nano ZnS/Co or ZnS/Mn was first increased then decreased as the annealing temperature increased while in the case of ZnS/Fe, the optical band gap increased as the annealing temperature increased. Furthermore, the emission spectra were affected by the kind of dopant and the annealing temperature of the host matrix [22]. Furthermore, PVA/CMC/PVP polymer blends loaded with ZnS/Co (400 and 500 • C) showed the highest values for the refractive index.…”

Section: Introductionmentioning

confidence: 99%

Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

et al. 2023

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The most efficient way to create novel materials that may be used in a variety of optoelectronic applications is thought to be doped mixed polymers with appropriate fillers. Undoped and doped PVC polymers with ZnS/Mn formed at different temperatures were fabricated using the casting method. The Rietveld method was used to discover the structure and microstructure of Zn0.95Mn0.05S prepared at T = 300, 400, and 500 °C. The distribution and existence of the nanofiller over the PVC matrix were determined via XRD, FTIR, EDS, and SEM techniques. The effect of the preparation temperatures of the ZnS/Mn nanofiller on the absorption, transmittance, reflectance, refractive index, extinction coefficient, dielectric constant, AC conductivity, electrical modulus, and DC conductivity activation energy data of the PVC polymer was studied using the diffused reflectance technique. Doping PVC with ZnS/Mn (prepared at 300 °C) lowered the direct and indirect optical band gaps from 5.4 and 4.52 eV to minimum values of 4.55 and 3.63 eV. The fluorescence intensity of pure PVC is greatly enhanced upon loading with ZnS/Mn. The PVC exhibited two near UV peaks, one violet and one blue color, while, in addition, the doped polymers exhibited green and orange colors. The corresponding CIE diagram for all the samples was also determined.

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Section: Introductionmentioning

confidence: 99%

Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

et al. 2023

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“…Additionally, the zinc sulfide nanopowder diffraction peaks appeared at 2 θ = 28.63°, 47.39°, and 56.17° denoted (111), (220), and (311) planes for cubic zinc phase (JCPDS Card no. 79‐2204) 45 …”

Section: Resultsmentioning

confidence: 99%

“…79-2204). 45 The average nanofillers crystallite size (D) can be obtained using the Scherrer formula. 46…”

Section: Structural Analysismentioning

confidence: 99%

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO₂ nanofillers

Abdel‐Kader,

Mohamed,

Almarashi

et al. 2023

Vinyl Additive Technology

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PVP/CMC/50%ZnS‐50%SnO2 blends were formed by solid state reaction, sol‐gel methods and casting technique. The structure and the crystallite size of the nanofillers (ZnS and SnO2) were examined using x‐ray diffraction technique (XRD). The effect of laser irradiation energies compared to the proportions of loaded nanofillers on the films internal structure and morphology was studied using XRD. The high miscibility among blends has been confirmed through Fourier transform infrared spectroscopy (FTIR). The energy dispersive x‐ray spectroscopy (EDS) analysis proved the presence of the nanocomposite polymer blends constituent atoms. The blends surface morphology has been investigated through scanning electron microscope (SEM). The dual effect of both different laser energies and oxygen atoms content simultaneously, on the linear and nonlinear optical parameters of nanocomposite films were explored as well. Results showed that, the laser irradiation energy process has the highest enhancement on the optical properties. The optical band gap (Eg) values were reduced from 4.8 eV (in the case of unirradiated blend) to 3.5 eV (for blends irradiated with 150 mJ/cm2) for allowed direct transitions, but for allowed indirect transitions Eg decreased from 3.3 eV (for unirradiated) to 2.2 eV (for irradiated with 150 mJ/cm2).Highlights A comparative discussion upon the effect of excess oxygen atoms has been represented. A dominant effect for the laser exposure compared to both the particle size and excess oxygen atoms. The variations of the nanocomposite films structural and optical features were promising.

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Effect of Zn/S non-stoichiometric ratio on the structural, optical and electronic properties of nano-ZnS

Albassam

Mohamed

2020

Appl. Phys. A

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Effect of doping and changing of the annealing temperature on the structural and optical properties of ZnS

Cited by 18 publications

References 52 publications

Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO₂ nanofillers

Effect of Zn/S non-stoichiometric ratio on the structural, optical and electronic properties of nano-ZnS

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Effect of doping and changing of the annealing temperature on the structural and optical properties of ZnS

Cited by 18 publications

References 52 publications

Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

Impact of ZnS/Mn on the Structure, Optical, and Electric Properties of PVC Polymer

Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO2 nanofillers

Effect of Zn/S non-stoichiometric ratio on the structural, optical and electronic properties of nano-ZnS

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Investigation of structure and optical characteristics of irradiated PVP/CMC nanocomposite films based on ZnS/SnO₂ nanofillers