Intensive linear and nonlinear optical studies of thermally evaporated amorphous thin Cu-Ge-Se-Te films

AS Hassanien - Journal of Non-Crystalline Solids, 2022 - Elsevier
This article is devoted to completing the study of linear and nonlinear optical characteristics
of thermally evaporated a-Cu x Ge 20-x Se 40 Te 40, CGST,(0≤ x≤ 20 at.%) thin films. The …

Optical properties and optoelectrical parameters of the quaternary chalcogenide amorphous Ge15SnxS35-xTe50 films

I Sharma, P Sharma, AS Hassanien - Journal of Non-Crystalline Solids, 2022 - Elsevier
This work is devoted to studying the optical properties of the novel thin a-Ge 15 Sn x S 35-x
Te 50, GSST,(x= 0, 2, 4, 6, 8, 10 at.%) films of thickness 300 nm. Many dielectric …

Refractive indices of semiconductors from energy gaps

SK Tripathy - Optical materials, 2015 - Elsevier
An empirical relation based on energy gap and refractive index data has been proposed in
the present study to calculate the refractive index of semiconductors. The proposed model is …

Optical characterization and dispersion discussions of the novel thermally evaporated thin aS50-xGe10CdxTe40 films

AS Hassanien, KA Aly, HI Elsaeedy, A Alqahtani - Applied Physics A, 2022 - Springer
In this article, the authors have been interested in synthesizing and studying the novel
amorphous thin S50-xGe10CdxTe40 films (SGCT)(0≤ x≤ 15 at.%) from their glassy bulk …

Studies on dielectric properties, opto-electrical parameters and electronic polarizability of thermally evaporated amorphous Cd50S50− xSex thin films

AS Hassanien - Journal of Alloys and Compounds, 2016 - Elsevier
The objective of this work is to study the influence of the addition of more Se on dielectric
properties, opto-electrical parameters and electronic polarizability of amorphous …

Fe3O4 nanoparticles and Fe3O4@ SiO2 core-shell: synthesize, structural, morphological, linear, and nonlinear optical properties

A Khalid, RM Ahmed, M Taha, TS Soliman - Journal of Alloys and …, 2023 - Elsevier
Magnetic iron oxide (Fe 3 O 4) and Fe 3 O 4@ SiO 2 core-shell were prepared via co-
precipitation and modified Stöber methods. Structural, morphological, and optical properties …

Refractive index of different perovskite materials

JK Singh, SK Mandal, G Banerjee - Journal of Materials Research, 2021 - Springer
The perovskite solar cell technologies are the hope of satisfying the huge demand of
tomorrow's energy requirements. The inorganic, organic and mixed perovskite materials are …

Optical characterizations and refractive index dispersion parameters of annealed TiO2 thin films synthesized by RF-sputtering technique at different flow rates of the …

AS Hassanien, AA Akl - Physica B: Condensed Matter, 2020 - Elsevier
Abstract Optical Characterizations of annealed TiO 2 thin films have been discussed.
Samples have prepared by sputtering technique at different reactive oxygen gas rates, R …

Study of optical properties of thermally evaporated ZnSe thin films annealed at different pulsed laser powers

AS Hassanien, KA Aly, AA Akl - Journal of Alloys and Compounds, 2016 - Elsevier
This research work is devoted to the study of optical properties of thermally evaporated and
laser annealed ZnSe thin films. Thin films of zinc selenide were annealed by a CO 2 pulsed …

Model for calculating the refractive index of different materials

V Kumar, JK Singh - 2010 - nopr.niscpr.res.in
Simple model based on energy gap data, has been proposed for calculating the refractive
index of different semiconductors, insulators, oxides and halides. The proposed model is …