A5039404475- ZnO doping and properties
- Transition Metal Oxide Nanomaterials
- Phase-change materials and chalcogenides
- Gas Sensing Nanomaterials and Sensors
- Chalcogenide Semiconductor Thin Films
- Glass properties and applications
- Thin-Film Transistor Technologies
- Nanofabrication and Lithography Techniques
- Ga2O3 and related materials
- Porphyrin and Phthalocyanine Chemistry
- Photodynamic Therapy Research Studies
- Magnetic and transport properties of perovskites and related materials
- Nonlinear Optical Materials Studies
- TiO2 Photocatalysis and Solar Cells
- Metal and Thin Film Mechanics
- Ferroelectric and Piezoelectric Materials
- Analytical Chemistry and Sensors
- Nuclear Physics and Applications
- Copper-based nanomaterials and applications
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Adhesion, Friction, and Surface Interactions
- Quantum Dots Synthesis And Properties
- Luminescence Properties of Advanced Materials
- Solid-state spectroscopy and crystallography
Al-Azhar University
2009-2022
Egyptian Atomic Energy Authority
2019
Taibah University
2008-2017
Al-Azhar University
2011-2015
Institute for New Media
2004-2006
Leibniz-Institute for New Materials
2005
In order to calculate the optical properties of evaporated Ge30Se70 thin films and their relation thickness, amorphous different thicknesses were deposited by thermal evaporation at a base pressure 7.5 × 10−6 Torr room temperature. The transmission reflection spectra all measured in wavelength range 0.2–2.5 μm. Efficient parameterization spectral dependence constants Ge–Se was obtained applying suitable dielectric function model. O'Leary, Johnson Lim (OJL) model, based on joint density...
Abstract Colloidal solutions containing fully redispersed crystalline In2O3:Sn(ITO)nanoparticles with an average size up to 30 nm and adequate organic binders(e.g. hydrolysable silanes)offer new possibilities coat substrates a transparent or antiglare conducting layer by different wet chemical coating techniques. The layers can be processed UV light irradiation at low temperature( < 130°C). process allows any types of which cannot withstand high temperature such as plastics(tested PC, PE,...
Thin films of 1, 4, 8, 11, 15, 18, 22, 25-octahexylphthalocyanine were deposited on glass substrates by the thermal evaporation and spin coating techniques. The structure both types was found to be in a form. crystallite size assumed values 88.65 44.32 nm for coated films, respectively. surface morphology thin investigated atomic force microscopy showed that molecules grew stacks parallel rows. optical properties thermally evaporated are reported here. spectrophotometric measurements...
Thin Se films with an appropriate thickness were deposited by the thermal evaporation technique on glass substrates that are grasped at a temperature of ∼300 K. The as-deposited amorphous thin heat-treated in N2 ambient for 1 h different annealing temperatures ranged from 323 to 363 transmittance spectra green and annealed have been measured vertical incidence angle along wavelength range 300–2500 nm. For first time, dielectric function (OJL2) model modified O'Leary, Johnson, Lim was used...
To study their structural, electrical, and optical properties, samples of Zinc oxide (ZnO) thin films were deposited from zinc acetate dehydrate (ZAD) sol different concentrations prepared by using sol–gel technology spin coating process. After deposition, the layers cured at sintering temperatures. The impact changes in molarity temperature on microstructure properties ZnO was studied X-ray diffractometry (XRD). results grain orientation, crystallite size, lattice strain, residual stress...
The aim of the study is to characterize 241 Am-Be isotopic neutron source with 5 Ci activity and nominal yield 1.1×10 7 n/s.The emitted neutrons were measured employing threshold multi-foil activation technique using following reactions: 115 In(n,n'), 58 Ni(n,p), 64 Zn(n,p), 27 Al(n,p), 56 Fe(n,p), 59 Co(n,α), 24 Mg(n,p), Al(n,α).The reactions selected based on their half-lives, adequate energy crosssection.The reaction rate each sample foil by detecting gamma ray spectra produced as a...