Explanipedia

Precise Determination of Optical Band Gap in Cr-Doped Semiconductor Nanowires Open

Noori S. Anad, Zakaria M. Abd El‐Fattah, M. Attallah, Hanaa M. Ahmed, M. M. El-Okr , et al. · 2021

Pristine and chromium-doped ZnO nanowires were prepared following the traditional co-precipitation method. X-ray diffraction data identified a pure wurtzite hexagonal crystal structure characteristic for ZnO, irrespective of the doping lev…

Influence of the addition of Two Transition Metal Ions to Sodium Zinc Borophosphate Glasses for Optical Applications Open

A.M. El-Batal, Mohammed Farag, M. M. El-Okr, Aly Saeed · 2021

Effect of Co and Mo ions on the sodium zinc borophosphate glasses network was investigated. Both structural and optical properties were studied by Xray diffraction, density, Infrared spectroscopy and optical absorption. Only a broad halo i…

Study of the optical properties of Li2O modified P2O5-Na2O glasses Open

Moein B. Sayed, M. M. El-Okr, L. Soliman, H. Zayed · 2019

Optical characteristics of the prepared glasses of composition 55 P 2 O 5 -(45-x) Na 2 Ox Li 2 O were ( 0 ≤ x ≤ 35 mol% ) have been investigated by X-Ray diffraction (XRD), differential thermal analysis (DTA), density (ρ), molar volume (V …

Synthesis and study of electrical properties of Li2O modified P2O5-ZnO-Na2O glasses Open

Noor Azuan Abu Osman, M. M. El-Okr, L. Soliman, H. Zayed · 2019

The transparent glasses of composition 40P 2 O 5 -20ZnO-(40-x)Na 2 O-xLi 2 O have been prepared using conventional melt quenching technique (where 0 ≤ x ≤ 25 Li 2 O mol. %).The amorphous nature of the prepared glass samples is confirmed by…

Synthesis and characterization of Li2O modified sodium phosphate glasses Open

H. Zayed, Moein B. Sayed, M. M. El-Okr, L. Soliman · 2018

The transparent glasses 55 P2O 5 - (45-x) Na2O - xLi2O where (x=0, 3, 10, 15, 30, 35) were prepared by conventional melt quenching technique. Structural and characterization have been investigated by using X-Ray diffraction (XRD) and the r…

The effect of Alkali Type on the Optical Behavior of Cu Doped Borate Glass Bandpass Filter Open

A. Abokhadra, Ahmed Samir, Memy H. Hassan, L. Soliman, M. M. El-Okr · 2017

Borate oxide glass system of composition: 30Y 2 O -43B 2 O 3 -7CuO -20ZnO where (Y= Li, Na and K) were prepared using the melt-quenching technique.Some physical properties were studied; such as X-ray diffraction, density, UV-Visible transm…

Structural, Optical and Magnetic properties of Ni-doped ZnO synthesized by Co-precipitation method Open

Israa Abood, A.A. Gadalla, M. M. El-Okr · 2017

Dilute magnetic semiconductors of Ni-doped ZnO nanoparticles (Zn1-xNixO, where x = 0.00, 0.02, 0.04, 0.05, 0.06 and 0.08) were synthesized by the chemical co-precipitation method. The effects of Ni concentration on the structure, optical a…

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