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Article
Effects of Deposition Parameters on Chemically Deposited PbS Thin Films

Authors: A.M. Mousa --- S.B. Ali
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2008 Volume: 4 Issue: 4 Pages: 7-11
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

Lead sulfide thin films were deposited by chemical bath deposition onto glass substrates. Depending on the percentage of the constituent bath salts and bath temperature, films with polycrystalline or amorphous structure were obtained. The influence of bath temperature and bath percentage on optical transmittance in the NIR region and structure was investigated. It was found that thickness goes on decreasing as the concentration of lead acetate increases. XRD revealed that the film deposited at 20°C displays no obvious characteristic reflection peaks which could be detected. Large grains are obtained when both deposition time and temperature are increased.


Article
Characterization of D.C. Sputtering System

Authors: A.S. Jabbar --- A.J. Haider --- A.M. Mousa
Journal: Iraqi Journal of Applied Physics Letters الرسائل العراقية في الفيزياء التطبيقية ISSN: 1999656X Year: 2008 Volume: 1 Issue: 1 Pages: 3-9
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

DC sputtering system was designed and fabricated and it used fordeposition cadmium films. The optimum conditions for deposition wasdetermined experimentally under different voltages, pressures, and inter -electrode distances. XRD spectra show a clear indication of (hcp) peakswhich belongs to pure cadmium metal.


Article
Optical and Electrical Properties of ZnO Thin Films Prepared by Spray Pyrolysis Technique

Authors: A.J. Mohammad --- A.M. Mousa --- K.H. Hussain
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2008 Volume: 4 Issue: 1 Pages: 37-40
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

In this work, ZnO thin films were prepared using spray paralysis technique at different molarities of aqueous zinc chloride solution. This study focused on the effect of morality on the optical and electrical properties, therefore, many samples were produced to explore and determine the optimum characteristics of the prepared samples. These properties include the optical properties such as transmittance, bandgap energy, skin depth, carrier concentration, photoconductivity, absorption edge shift, optical constants such as absorption coefficient and extinction coefficient, and electrical properties such as I-V characteristics, electrical conductivity and resistivity under dark or illumination conditions.


Article
Influence of Deposition Parameters on Optical and Electrical Properties of CuxS Thin Films Prepared Using Chemical Bath Deposition Method

Authors: A.M. Mousa --- S.H. Nasher --- J.-P. Ponpon
Journal: Iraqi Journal of Applied Physics المجلة العراقية للفيزياء التطبيقية ISSN: 18132065 23091673 Year: 2008 Volume: 4 Issue: 3 Pages: 19-24
Publisher: iraqi society for alternative and renewable energy sources and techniques الجمعية العراقية لمصادر وتقنيات الطاقة البديلة والمستجدة

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Abstract

Thin films of CuxS have been deposited in an aqueous solution of copper chloride, tri ethanol amine, aqueous ammonia and thiourea. The effect of deposition time, solution pH and thiourea amount on films thickness, growth rate, optical and electrical properties has been studied. The film thickness increases with increasing deposition time and thiourea volume, whereas it decreases with increasing the solution pH. The corresponding small modifications of optical properties can be explained by the increase in roughness with film thickness. Electrical resistivity is strongly influenced by the solution pH and by the thiourea amount but depends to a much less extent on the film thickness.

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