Browsing by Author "sshaat"
Now showing items 1-20 of 41
-
A new white light emitting nanophosphor
(2012-01-01)White light was produced from CaAl2O4 nanophosphor co-doped with Tb3+and Eu3+. The short time and low temperature reaction combustion route was used to synthesize CaAl2O4:Tb3+,Eu3+ nanophosphors using metal nitrates ... -
A Structural Study of Cu-Zn Ferrites by Infrared Spectra
(2006-01-01)Infrared (IR) spectra of Zn2+ ions substituted Cu spinel ferrite, having the general formula Cu1-sZnsFe2O4, (where s stepped by 0.2 such that0.0s1.0), have been analyzed in the frequency range(200-1000)cm-1. The above ... -
AC and Dielectric Properties of Polycrystalline Zn – Ni Spinel Ferrites Prepared by Double Sintering Technique
(الجامعة الإسلامية - غزة, 2017)The mixed polycrystalline ferrites , were obtained using the standard double sintering technique of mixing high purity of metal oxides , and for different concentration of Ni content. Double probe electrode ... -
AC Conductivity and Dielectric Properties of Cu–Zn ferrites
(2010-01-01)In this work, we have studied the effects of the 2 Zn ions on the electric and the dielectric properties of the Cu spinel ferrite. The mixed Cu-Zn spinel ferrite, of chemical formula 1 s s 2 4 Cu Zn Fe O , where s ... -
Advanced Ferrite Technology Properties and Applications
(LAMBERT, 2011-01-01)This book contains some of the magnetic, the electric and the dielectric properties of the mixed Cu-Zn spinel ferrite. The material covered in this book is divided into two parts: They are theoretical part I and experimental ... -
Cathodoluminescence mapping and thermoluminescence of Pr 3+ doped in a CaTiO 3 /CaGa 2 O 4 composite phosphor
(Elsevier BV, 2016-06)In order to probe the properties of the one pot prepared composite phosphor of CaTiO3 and CaGa2O4, cathodoluminescence mapping, thermoluminescence and lifetime measurements were carried out. The structural study showed ... -
Curie Points and Direct Current Electrical Conductivity for Inverse Li-Spinel Ferrite Replaced by Zn2+ Ion
(2019)The conventional ceramic double sintering method was used to prepare a series of mixed Li-Zn spinel ferrites (SFs) Direct electric (DC) electrical conductivity (σ) and inductance (L) were studied ... -
Enhancement of the performance of dye-sensitized solar cells using sensitized zinc oxide nanoparticles by rhodamine B dye
(Egypts Presidential Specialized Council for Education and Scientific Research, 2019-07)In the present work, ZnO nanoparticles were synthesized via a simple wet chemical (hydrothermal) technique using zinc acetate dihydrate (Zn(CH3COO)2.2H2O) as a row material dissolved into absolute methanol and aqueous NaOH ... -
FT-IR Studies of Nickel Substituted Polycrystalline Zinc Spinel Ferrites for Structural and Vibrational Investigations
(Chemical Science Transactions, 2017-04-30)FT-IR spectra of Ni1-sZnsFe2O4 spinel ferrite, s changed by 0.2 according to 0.0 s 1.0, have been analyzed in the frequency range (350−1000) cm-1. Six polycrystalline ferrites samples were synthesized using the ... -
Inexpensive organic dyes-sensitized zinc oxide nanoparticles photoanode for solar cells devices
(SPIE-Intl Soc Optical Eng, 2017-06-15)Zinc oxide nanoparticles (ZnO NPs) were synthesized using a hydrothermal route. The prepared ZnO NPs were characterized by x-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), UV–vis ... -
Influence of Metal Ion Doping of Zinc Oxide Photoanode on the Efficiency of Dye Sensitized Solar Cell
(الجامعة الإسلامية - غزة, 2017)Doping zinc oxide nanoparticles (ZnO NPs) and doped with Niobium (Nb5+) and Aluminium (Al3+) ions were synthesized to use as a photoanode for the Dye Sensitized Solar Cells (DSSCs). The structural of the synthetized samples ... -
INITIAL PERMEABILITY AND DC CONDUCTIVITY OF CU – ZN FERRITE
(الجامعة الإسلامية - غزة, 2006)The initial permeability and dc conductivity as a function of temperature ranges from 300K to 800K are measured for Cu1-sZnsFe2O4 compounds. This compound was prepared using the conventional ceramic double sintering process ... -
Investigation of luminescent properties of Ca 0.3 Sr 0.7 Al 2 O 4 :Tb 3+ ,Eu 3+ excited using different excitation sources
(Elsevier BV, 2014-12)tThe structure and luminescent properties of Tb3+–Eu3+co-activated Ca0.3Sr0.7Al2O4powder phosphorprepared via solution combustion (SC) method were investigated. The phosphor was analyzed usingUV–vis spectroscopy, Fourier ... -
Investigation of Structural Parameters and Magnetic Properties of Mixed Li-Ni Spinel Ferrites
(2018)The solid state method was used to synthesize the mixed spinel ferrites where x is the increments of Ni content. The net magnetization (Mnet) of the prepared samples was calculated according to the suggested cations ... -
Investigation of the Effect of Zn Ions Concentration on DC Conductivity and Curie Temperature of Ni-spinel Ferrite
(2016-01-01)The mixed polycrystalline ferrites Ni1-sZnsFe2O4, were obtained using the standard double sintering technique by mixing high purity of metal oxides NiO, ZnO and Fe2O3 for different concentration of Zn ion. DC electric ... -
Magnetic Properties of Zn Substituted Cu Ferrite
(2006-09-05)The Cu-Zn ferrites samples have the general formula Cu1-sZnsFe2O4, (where s is stepped by 0.2 according to 0.0s1.0), The samples are used to measure the magnetization at room temperature. The magnetization increases with ... -
Nanoplasmonic for Solar Energy Conversion Devices
(IntechOpen, 2019)The effect of nanoplasmonic (Ag) on the performance of DSSCs has been studied in doped and undoped ZnO (DZ and UZ) NPs, which were prepared by the urea-assisted combustion route. Different techniques were conducted to ... -
Optical properties and chemical composition analyses of mixed rare earth oxyorthosilicate (R2SiO5, R=La, Gd and Y) doped Dy3+ phosphors prepared by urea-assisted solution combustion method
(Elsevier BV, 2015-08)Dysprosium(Dy3þ) dopedlanthanumgadoliniumoxyorthosilicate(LaGdSiO5), lanthanumyttrium oxyorthosilicate(LaYSiO5) andgadoliniumyttriumoxyorthosilicate(GdYSiO5) phosphors(inpowder form) weresynthesizedbyurea-assistedcombu ... -
Origin of the red emission in zinc oxide nanophosphors
(Elsevier BV, 2013-06)UV andorange-redlightemittingzincoxidenano-phosphors(ZnONPr)weresynthesisedbya combustion methodusingzincnitrateandzincacetateasprecursorsandureaasafuel.Hexagonal wurtzite structuresofZnOweresynthesised.X-rayphotoelect ... -
Perovskite solar cells free of hole transport layer
(Springer Science and Business Media LLC, 2019-04-06)In this work, easy and simple structured perovskite solar cells (PSCs) are designed and characterized. Our effort was to reduce the cost of the fabrication of such PSC devices, first by using an inexpensive starting precursor ...