Table of content

Iraqi Journal of Applied Physics

المجلة العراقية للفيزياء التطبيقية

ISSN: 18132065 23091673
Publisher: iraqi society for alternative and renewable energy sources and techniques
Faculty:
Language: English

This journal is Open Access

About

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and its applications in the broadest sense. It is intended that the journal may act as an interdisciplinary forum for Physics and its applications. Innovative applications and material that brings together diverse areas of Physics are particularly welcome. Review articles in selected areas are published from time to time. It aims to disseminate knowledge; provide a learned reference in the field; and establish channels of communication between academic and research experts, policy makers and executives in industry, commerce and investment institutions. IJAP is a quarterly specialized periodical dedicated to publishing original papers, letters and reviews in: Applied & Nonlinear Optics, Applied Mechanics & Thermodynamics, Digital & Optical Communications, Electronic Materials & Devices, Laser Physics & Applications, Plasma Physics & Applications, Quantum Physics & Spectroscopy, Semiconductors & Optoelectronics, Solid State Physics & Applications, Alternative and Renewable Energy, Computers Networks and Applications.

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Contact info

P. O. Box 55259,
Baghdad 12001,
Iraq
Website: www.iraqiphysicsjournal.com
Email: admin@iraqiphysicsjournal.com
Email: editor_ijap@yahoo.co.uk

Table of content: 2019 volume:15 issue:4

Article
Iraqi Journal of Applied Physics
المجلة العراقية للفيزياء التطبيقية

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Abstract

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and its applications in the broadest sense. It is intended that the journal may act as an interdisciplinary forum for Physics and its applications. Innovative applications and material that brings together diverse areas of Physics are particularly welcome. Review articles in selected areas are published from time to time. It aims to disseminate knowledge; provide a learned reference in the field; and establish channels of communication between academic and research experts, policy makers and executives in industry, commerce and investment institutions. IJAP is a quarterly specialized periodical dedicated to publishing original papers, letters and reviews in: Applied & Nonlinear Optics, Applied Mechanics & Thermodynamics, Digital & Optical Communications, Electronic Materials & Devices, Laser Physics & Applications, Plasma Physics & Applications, Quantum Physics & Spectroscopy, Semiconductors & Optoelectronics, Solid State Physics & Applications, Alternative and Renewable Energy, and Computers and Networks.


Article
Instructions for Authors
تعليمات للمؤلفين

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Abstract

Contributions to be published in this journal should be original research works, i.e., those not already published or submitted for publication elsewhere, individual papers or letters to editor. Manuscripts should be submitted to the editor at the mailing address: Iraqi Journal of Applied Physics, Editorial Board, P. O. Box 55259, Baghdad 12001, IRAQ Website: www.iraqiphysicsjournal.com Email: editor@iraqiphysicsjournal.com, editor_ijap@yahoo.co.uk


Article
Structural and Gas Sensing Characteristics of CuO-Doped ZnO Thin Films Papered by Pulsed-Laser Deposition

Authors: Mohammed A. Annaz --- Mazin H. Hasan
Pages: 3-9
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Abstract

In this work, pulsed-laser deposition was used to prepare zinc oxide (ZnO) thin films on glass and porous silicon substrates. These films were doped with different contents of copper oxide (CuO). The x-ray diffraction patterns showed peaks belonging to hexagonal ZnO structure only for the samples with CuO contents of 10, 30 and 50%, while the peaks belonging to cubic CuO structure were observed in the samples with partial CuO contents of 70 and 90%. As the CuO content was increased, the average roughness of the prepared surfaces was accordingly increased. The electrical measurements showed that all prepared samples were of n-type conductivity and the charge carrier concentration was decreasing with increasing partial content of CuO. The CuO-doped ZnO films deposited on porous silicon substrates were tested as gas sensors. The maximum sensitivity of 49% for NO2 gas was recorded at constant current of 15 mA and exposure time of 30 min for the sample of 10% CuO content at operation temperature of 200 °C.


Article
Effects of Semiconductor Laser Bias Current on Synchronization in Chaotic Dynamics

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Abstract

In this work, the investigation of chaotic spiking in the dynamics of a semiconductor laser output with optoelectronic feedback has been reported experimentally and numerically. The effect of variation of the bias current on the chaos control is satisfied. Chaotic synchronization can occur depending on the strengths of the coupling as well as the dc bias current of the laser. Therefore, the effects of bias current variation of semiconductor laser between two chaotic oscillators on the synchronization in a closed-loop configuration are studied. The simulation results show that, at dc bias current from 106 to 114 μA, high quality chaos synchronization can be preserved, and the communications performance can be enhanced by increasing the bias current of slave laser.


Article
Synthesis and Characteristics of Electrochromic Glass with Multi-Layer Configuration Based on glass/ITO/WO3/ZrO2/NiO/ITO/glass

Authors: Zinah S. Abdulsattar --- Firas J. Kadhim
Pages: 17-22
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Abstract

In the present work, three transition metal oxides; tungsten trioxide (WO3), zirconium dioxide (ZrO2) and nickel oxide (NiO) were prepared as thin films. Spray pyrolysis and magnetron sputtering techniques were employed to deposit these thin films on indium-doped tin oxide (ITO) coated glass substrates. The prepared samples were characterized by x-ray diffraction, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and UV-visible spectroscopy. The smart window (device) with the configuration: glass/ITO/WO3/ZrO2/NiO/ITO/glass was fabricated and characterized by UV-visible spectroscopy. This device was tested by applying ±5V and high optical transmittance modulation at about 30.93% was observed.


Article
Conjunctional Freezing-Assisted Ultrasonic Extraction of Silicon Dioxide Nanopowders from Thin Films Prepared by Physical Vapor Deposition Technique

Authors: Oday A. Hammadi
Pages: 23-28
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Abstract

In this work, the effects of different extraction parameters on the particle size of the nanopowders extracted from silicon dioxide thin film samples were studied. These nanopowders were obtained by the conjunctional freezing-assisted ultrasonic extraction method. Results showed that extraction parameters such as freezing temperature, ultrasonic frequency and application time are very effective in determining the nanoparticle size, which is very important for many applications and uses of highly-pure nanomaterials and nanostructures.


Article
Isentropic and Isenthalpic Cooling Techniques for Low-Temperature Discharges

Pages: 29-32
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Abstract

In this article, the most common techniques used for the production of gas discharges at low temperatures are introduced. These techniques are mainly based on the isentropic and isenthalpic cooling processes of gases inside reactors known as liquefiers. The theoretical liquefaction efficiency of the helium was determined according to the physical data of this gas. Such determination can be extended to other inert gases used for generation of discharge plasmas, such as argon and neon as well as those gases usually used as reactive in plasma processing techniques, such as hydrogen, nitrogen and oxygen.


Article
Structural Characteristics of Silicon Nitride Nanostructures Synthesized by DC Reactive Magnetron Sputtering

Authors: Baraa K. Nasser --- Mohammed A. Hameed
Pages: 33-36
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Abstract

In this work, silicon nitride nanostructures were synthesized by dc reactive magnetron sputtering technique. The effect of deposition time on the structural characteristics, especially structural purity and nanoparticle size, was determined. Long deposition time allows more silicon atoms sputtered from the target to bond to nitrogen atoms and form silicon nitride molecules. Therefore, the structure of the final product is highly dominated by silicon nitride as confirmed by the x-ray diffraction pattern. On the other hand, nanoparticles with larger size were grown at long deposition time. As the deposition time was increased from 3 to 4 hours, the nanoparticle size was increased from 26.10 to 101.20 nm. The structural characteristics of silicon nitride nanoparticles can be sufficiently controlled by the preparation conditions to serve certain applications based on nanoparticle size.


Article
Iraqi Journal of Applied Physics (IJAP) Subject Index 2005-2019
فهرست البحوث المنشورة في المجلة العراقية للفيزياء التطبيقية 2005-2019

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Abstract

Iraqi Journal of Applied Physics (IJAP) Subject Index 2005-2019فهرست البحوث المنشورة في المجلة العراقية للفيزياء التطبيقية 2005-2019


Article
Iraqi Journal of Applied Physics (IJAP) Author Index 2005-2019
فهرست المؤلفين للبحوث المنشورة في المجلة العراقية للفيزياء التطبيقية 2005-2019

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Iraqi Journal of Applied Physics (IJAP) Author Index 2005-2019فهرست المؤلفين للبحوث المنشورة في المجلة العراقية للفيزياء التطبيقية 2005-2019


Article
IJAP Copyright Release Form
استمارة نقل حقوق الطباعة والنشر والتوزيع

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We declare that we have neither taken part or full text from any published work by others, nor presented or published it elsewhere in any other journal. We also declare transferring copyrights and conduct of this article to the Iraqi Journal of Applied Physics (IJAP) after accepting it for publication. The authors will keep the following rights: 1. Possession of the article such as patent rights. 2. Free of charge use of the article or part of it in any future work by the authors such as books and lecture notes after informing IJAP editorial board. 3. Republishing the article for any personal purposes of the authors after taking journal permission.


Article
Volume 15, Issue 4, October-December 2019 (Contents)
محتويات المجلد الخامس عشر - العدد الرابع - تشرين الأول، تشرين الثاني، كانون الأول 2019

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About Iraqi Journal of Applied Physics (IJAP) 1 Instructions to Authors 2 Structural and Gas Sensing Characteristics of CuO-Doped ZnO Thin Films Papered by Pulsed-Laser Deposition 3-9 Mohammed A. Annaz, Mazin H. Hasan Iraqi Journal of Applied Physics (IJAP) in Language of Numbers 10 Editorial Board Effects of Semiconductor Laser Bias Current on Synchronization in Chaotic Dynamics 11-16 Dhulfiqar S. Mutashar, Kais A.M. Al Naimee Synthesis and Characteristics of Electrochromic Glass with Multi-Layer Configuration Based on glass/ITO/WO3/ZrO2/NiO/ITO/glass 17-22 Zinah S. Abdulsattar, Firas J. Kadhim Conjunctional Freezing-Assisted Ultrasonic Extraction of Silicon Dioxide Nanopowders from Thin Films Prepared by Physical Vapor Deposition Technique 23-28 Oday A. Hammadi Isentropic and Isenthalpic Cooling Techniques for Low-Temperature Discharges 29-32 Neven M. Samuel, David G. Rodgers, Guy K. White Structural Characteristics of Silicon Nitride Nanostructures Synthesized by DC Reactive Magnetron Sputtering 33-36 Baraa K. Nasser, Mohammed A. Hameed Iraqi Journal of Applied Physics (IJAP) Subject Index 2005-2019 37-42 Iraqi Journal of Applied Physics (IJAP) Author Index 2005-2019 43-48 Iraqi Journal of Applied Physics (IJAP) Copyright Form 49 Contents 50

Table of content: volume:15 issue:4