Ahmed K. Abbas

• Professor
• University of Wasit

This work used spectroscopic plasma emission analysis to investigate the parameters of ZnTi plasma formed in the atmosphere by a Q-switched Nd:YAG nanosecond laser system emitting infrared (1064 nm) laser light with an energy output spanning 200-500 mJ. The spectrometer was used to examine and record the emission spectrum profiles of (ZnTi), which...

This work used spectroscopic plasma emission analysis to investigate the parameters of Zn–Cd plasma formed in the atmosphere by a Q-switched Nd:YAG nanosecond laser system emitting infrared (1064[Formula: see text]nm) laser light with an energy output spanning 200[Formula: see text]mJ to 500[Formula: see text]mJ. The spectrometer was used to examin...

This paper gives an overview of finding the discharge parameters equations and their effects on the design criteria of ETA as well as the realized design solutions. The aim of this study is to obtain information about the discharge parameters in an electrothermal gun by extending the previous models of different researches and analyze their equatio...

Metal-ceramic composite particles are of increasing interest due to their potential applications in photodetectors as well as next-generation catalysts. The zirconium-gold system has received little attention due to the lack of controllable preparation methods. Well-known methods for the deposition of gold Nano shells on zirconium spheres, however,...

In this work, optical emission spectroscopy (OES) was used to estimate the parameters of plasma electron temperature (T e ), electron density (n e ), plasma frequency (f p ), Debye length (λ D ), and Debye number (N D ). Understanding how an energy pulsed laser affects these variables is also important. Irradiation of pure cadmium using an Nd: YAG...

In this work; Lead sulfide (PbS) plasma plume was prepared by laser induced plasma (LIP). With Nd: YAG laser was irradiation of the target worked at a wavelength of (1064) nm. have been studied using the spectrometer that collect the spectrum of Laser produce PbS plasma at different values of energy (200,300,400,500,600)mJ. The electron temperature...

In this paper, the four parameters of plasma (density of electron, temperature of electron, length Debye and frequency of plasma) are studied. Optical emission spectroscopy method is utilized to study Debye sphere (ND). The spectrum of plasma with different values of energy, Zn with Nio at different percentage (X=0.1, 0.3, 0.5) were recorded. The s...

In this work; Lead sulfide (PbS) plasma plume was prepared by laser induced plasma (LIP). With Nd: YAG laser was irradiation of the target worked at a wavelength of (1064) nm. have been studied using the spectrometer that collect the spectrum of Laser produce PbS plasma at different values of energy (200,300,400,500,600)mJ. The electron temperature...

In this work, a home - made plasma jet system has been constructed. The system which used in this work was adi electric barrier discharge (DBD) type atmospheric pressure plasmajet (APPJ). It was applied to generate a non-thermalplasmaus- ing an alternating current (AC) power supply (providing voltages 8 and 10) kVp−p and frequencies up to 20 kHz) w...

Polycrystalline cadimumtelluride : copper composite thin films were deposited on a glass substrate by pulsed laser deposition technique(PLD).Using Nd:YAG with 1064 nm wavelengthconstant energy 600 mJ , repetition rate (6) Hz and No. of pulse (150) for each sample.The pure of bulk (CdTe) and Mixture of bulk (CdTe:Cu) percentages (x=0.0, 0.3, 0.5and...

This article, plasma parameters.[((Te) electron temperature, (ne) electron density, (fp) Plasma frequency, (λD) Debye length , and (ND) Debye number], were studied by using a spectrometer that collects the laser spectrum produces cadmium telluride Plasma in different energies. As well as for CdTe: Ag for different card ratios. The electron temperat...

Key words In this work, the structure and optical properties of Lead sulfide PbS nanostructure were studied. Thin film deposited on glass substrates were prepared by pulse laser deposition Nd:YAG laser at (1064 nm) wavelength with a various laser energies (200, 300, 400 and 500) mJ was used. The effect of changing the laser energy on the structural...

In this work, the structure properties of nano Lead sulfide PbS thin films are studied. Thin samples were prepared by pulse laser deposition and deposited on glass substrates at wavelength 1064nm wavelength with a various laser energies (200,300,400,500)nm. The study of atomic force microscope (AFM) and X-ray diffraction as well as the effect of ch...

Metal nanoparticles (NPs) of silver (Ag), copper (Cu), zinc oxide (ZnO), cadmium oxide (CdO) and tin (Sn) were synthesized by laser ablation of a solid target in de-ionized water (DI). X-ray diffraction patterns showed the formation of AgO, Ag, Cu, ZnO, CdO, and Sn NPs. Absorbance spectrum of the produced nanoparticles was measured by UV-Vis spectr...

In our study, metal nanoparticles Ag, Cu, ZnO, CdO and Sn NPs were prepared by pulse laser ablation in liquid and characterized for investigation of reproductive toxicity in adult male rats. Thirty six healthy rats, two month age oldand the rats weighing from 250-300 g, divided into six groups of six animals each (GAg, GCu, GZnO, GCdO and Sn) group...

This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. In this study, nanostructured zinc oxide (ZiO) thin film was prepared by a...

This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. Colloidal solutions of Titanium dioxide nanoparticles were synthesized by...

Abstract In the present work, we studied the optical emission spectra of cadmium oxide (CdO) plasma produced by the fundamental (1064 nm) wavelength of an Nd: YAG laser at vacuum. in the range 200-800 nm, The plasma parameters such as electron temperature and electron number density have been extracted using Boltzmann plot method and Stark broaden...

In the present work, we studied Cadmium oxide CdO thin films were deposited by pulsed laser deposition technique at different wavelength laser on glass substrates. They found The XRD analysis shows that CdO films are polycrystalline with cubic structure. Transmittance decreased with increasing and laser wavelength also that the same behavior for en...

Nanostructure zirconium films are deposited on glass substrate with different thicknesses 85 and 100 nm by R.F.magnetron sputtering. X-ray diffraction (XRD) patterns reveal the formation of polycrystalline ZrO2 films after annealing with average particle size in the range of 13.17 nm and 37.29 nm for thicknesses 85 and 100 nm respectively. The aver...

Electrical characteristics of a DC glow discharge are studied with the aim of determining the suitable parameters for stable operation of the plasma system. Argon plasma produced by DC glow discharge is investigated with a further goal of studying plasma argon gas can significantly change the plasma characteristics. The discharge system has two dis...

In this paper, CdO thin films having different thicknesses 100, and 200 nm were deposited onto glass substrates by a radio frequency (R.F.) magnetron sputtering process using CdO target under Ar pressure. The sputtering deposition was performed by using R.F. power of 100W. X-ray diffraction (XRD) results suggested that the deposited CdO films were...

Nanostructure zirconium films are deposited on glass substrate with different thicknesses 85 and 100 nm by R.F.magnetron sputtering. X-ray diffraction (XRD) patterns reveal the formation of polycrystalline ZrO2 films after annealing with average particle size in the range of 13.17 nm and 37.29 nm for thicknesses 85 and 100 nm respectively. The aver...

Abstract In this work, the spectra for plasma glow produced by pulse Nd:YAG laser (λ=1064nm) on Ag and Cu metals in air were analyzed by studying the atomic lines compared with silver and copper strong standard lines. The effect of laser energies of the range 300 to 500 mJ on spectral lines, produced by laser ablation, was investigated using optica...

This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. Colloidal solutions of Titanium dioxide nanoparticles were synthesized by...

In this work, the spectra for plasma glow produced by pulse Nd:YAG laser (λ=1064nm) on Ag and Cu metals in air were analyzed by studying the atomic lines compared with silver and copper strong standard lines. The effect of laser energies of the range 300 to 500 mJ on spectral lines, produced by laser ablation, was investigated using optical spectro...

In this work, a home-made plasma jet system has been constructed. The system which used in this work was a dielectric barrier discharge (DBD) type atmospheric pressure plasma jet (APPJ). It was applied to generate a non-thermal plasma using an alternating current (AC) power supply (providing voltages 4,6,8 and 10) kV p−p and frequencies up to 20 kH...

This is an Open Access Journal / article distributed under the terms of the Creative Commons Attribution License (CC BY-NC-ND 3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. All rights reserved. In this work, the excellent properties were reported for nanostructure cad...

Electrical characteristics of a DC glow discharge are studied with the aim of determining the suitable parameters for stable operation of the plasma system. Argon plasma produced by DC glow discharge is investigated with a further goal of studying plasma argon gas can significantly change the plasma characteristics. The discharge system has two dis...

Titanium Dioxide (TiO 2) thin films were deposited on glass substrates by radio-frequency (RF) magnetron sputtering under various sputtering power (75-150)W. The influence of sputtering power on the optical and structural properties of the films were studied. X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM)...

Titanium Dioxide (TiO 2) thin films were deposited on glass substrates by radio-frequency (RF) magnetron sputtering under various sputtering power (75-150)W. The influence of sputtering power on the optical and structural properties of the films were studied. X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM)...

Silver nanoparticles (Ag NPs) were prepared by pulse laser ablation in distilled water with assistant of electric and magnetic field at various laser power and 300 pulses. The synthesized nanoparticles are characterized using X-ray diffraction (XRD),transmission electron microscopy (TEM) and utraviolet-visible (UV-Visible) spectroscopy. The X-ray d...

Silver nanoparticles (Ag NPs) were prepared by pulse laser ablation in distilled water with assistant of electric and magnetic field at various laser power and 300 pulses. The synthesized nanoparticles are characterized using X-ray diffraction (XRD),transmission electron microscopy (TEM) and utraviolet-visible (UV-Visible) spectroscopy. The X-ray d...

Silver nanoparticles (Ag NPs) were prepared by pulse laser ablation in distilled water with assistant of electric and magnetic field at various laser power and 300 pulses. The synthesized nanoparticles are characterized using X-ray diffraction (XRD),transmission electron microscopy (TEM) and utraviolet-visible (UV-Visible) spectroscopy. The X-ray d...

Silver nanoparticles (Ag NPs) were prepared by pulse laser ablation in distilled water with assistant of electric and magnetic field at vari-ous laser power and 300 pulses. The synthesized nanoparticles are characterized using X-ray diffraction (XRD),transmission electron microscopy (TEM) and utraviolet-visible (UV-Visible) spectroscopy. The X-ray...

Noble metal nanoparticles were synthesized by pulsed laser ablation of metals plates immersed in de-ionized water (DI). The x-ray diffraction pattern showed that the structure of noble metal NPs film is polycrystalline with preferential orientation of platinum in (202) direction, gold in (200) direction, silver in (111) direction and copper in (111...

Noble metal nanoparticles were synthesized by pulsed laser ablation of metals plates immersed in de-ionized water (DI). The x-ray diffraction pattern showed that the structure of noble metal NPs film is polycrystalline with preferential orientation of platinum in (202) direction, gold in (200) direction, silver in (111) direction and copper in (111...

Noble metal nanoparticles were synthesized by pulsed laser ablation of metals plates immersed in de-ionized water (DI). The x-ray diffraction pattern showed that the structure of noble metal NPs film is polycrystalline with preferential orientation of platinum in (202) direction, gold in (200) direction, silver in (111) direction and copper in (111...

In this paper, CuO thin films having different thicknesses 20, 100 and 200 nm were deposited onto glass substrates by a radio frequency (R.F.) magnetron sputtering process using copper oxide target under Ar pressure. The sputtering deposition was performed by using R.F. power of 130 W. X-ray diffraction (XRD) results suggested that the deposited Cu...

This paper gives an overview of finding the discharge parameters equations and their effects on the design criteria of ETA as well as the realized design solutions. The aim of this study is to obtain information about the discharge parameters in an electrothermal gun by extending the previous models of different researches and analyze their equatio...