Journal ArticleDOI
Some electron probe X-ray microanalysis (EPMA)- and (BPES)-related physical investigations on ZnSSe thin-films growth composition-related kinetics
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In this article, depth-dependent composition changes were investigated as guides to monitor the selenization kinetics in a ZnS sprayed thin film, and the spectral analysis was carried out in the region from 400 to 1800 nm.Abstract:
In this study, ZnSSe epilayers were grown on (111) ZnS sprayed thin films. The spectral analysis was carried out in the region from 400 to 1800 nm. Analyses of the transmittance and (or) reflectance spectra indicate a decrease of the band gap energy value Eg with selenization. As the selenization process changes the structure and property of prepared materials and therefore has a direct effect on their physical properties, one of the concerns of this paper is to investigate the depth-dependent composition changes as guides to monitoring the selenization kinetics. Photothermal, atomic force microscopy (AFM), and X-ray diffraction (XRD) investigations have also been carried out.read more
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Effect of Mn content on structural, optical, opto-thermal and electrical properties of ZnO:Mn sprayed thin films compounds
TL;DR: In this paper, the effects of manganese element content on structural, optical, opto-thermal and electrical conductivity of ZnO:Mn thin films were investigated by means of X-ray diffraction, optical measurement, Photoluminescence spectroscopy and impedance spectrography.
Journal ArticleDOI
Study of substrate temperature effects on structural, optical, mechanical and opto-thermal properties of NiO sprayed semiconductor thin films
A. Boukhachem,R. Boughalmi,M. Karyaoui,A. Mhamdi,Radhouane Chtourou,Karem Boubaker,Mosbah Amlouk +6 more
TL;DR: In this article, a simple spray pyrolysis technique using nickel chloride hexahydrate solutions onto glass substrates at different temperatures of 350, 400 and 450°C was used to obtain crystalline nickel oxide thin films.
Journal ArticleDOI
Effect of tin content on the electrical and optical properties of sprayed silver sulfide semiconductor thin films
TL;DR: In this article, a discussion of some structural calculated constants has been made with tin doping in terms of microhardness measurements, and optical analysis via the transmittance, reflectance as well as the photocurrent reveals that the direct band gap energy decreases (Egd varies from 2.34 to 2.16eV) and the indirect band gap energies increases (Egi varies from 0.98 to 1.09 eV) slightly as a function of Sn content.
Journal ArticleDOI
A solution to the accelerated-predator-satiety Lotka-Volterra predator-prey problem using Boubaker polynomial expansion scheme.
TL;DR: In this study, an analytical method is introduced for the identification of predator-prey populations time-dependent evolution in a Lotka-Volterra predator- prey model which takes into account the concept of accelerated-predator-satiety.
Journal ArticleDOI
Some physical investigations of AgInS2−xSex thin film compounds obtained from AgInS2 annealed in seleneide atmosphere
TL;DR: In this article, the authors deal with the preparation of AgInS2−xSex from AIS sprayed thin films which treated under seleneide atmosphere during 1 h at various temperatures (400, 450 and 500 °C).
References
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Electronic Structures of Semiconductor Alloys
TL;DR: In this paper, the problem of the band structure of semiconductor alloy systems is treated by both the dielectric two-band method and by the use of an empirical (local) pseudopotential.
Journal ArticleDOI
Propriétés optiques des couches minces de SnO2 et CuInS2 airless spray
S. Belgacem,Raouf Bennaceur +1 more
TL;DR: In this article, les caracteristiques optiques des couches minces of SnO2 and CuInS2 preparees par airless spray en vue de leur utilisation en tant que contact avant and absorbeur de la structure photovoltaique backwall CdS/CuInS 2.
Journal ArticleDOI
On Modified Boubaker Polynomials: Some Differential and Analytical Properties of the New Polynomials Issued from an Attempt for Solving Bi-varied Heat Equation
Journal ArticleDOI
The preparation and some properties of transparent conducting ZnO for use in solar cells
J. H. Morgan,D. E. Brodie +1 more
TL;DR: The fabrication of transparent conducting films of ZnO is described in this paper, where the power in dc glow discharge, the oxygen pressure, and the zinc evaporation rate are adjusted to optimize the required film property.
Journal ArticleDOI
Investigation of thermal diffusivity–microhardness correlation extended to surface-nitrured steel using boubaker polynomials expansion
TL;DR: In this article, a polynomial correlation between the thermal diffusivity and the Vickers hardness HV using the recently established Boubaker Polynomial expansion was established. But this correlation is not an efficient guide to set an NDT protocol to investigate steel strengthened surface performance.
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