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: 2018 volume:14 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.


Article
Gas Phase Growth Techniques for Quantum Dots: An Overview

Authors: Wei Qiang Wang --- Mu Zhou Jiang
Pages: 3-12
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Abstract

An overview of methods for preparing quantum dots (nanoparticles) in the gas phase is given, and recent developments and advances for gas phase synthesis techniques are discussed. Developments in instrumentation for monitoring gas-phase synthesis of nanoparticles, in modeling these processes, and in producing multi-component nanoparticles are also included. The most important developments relate to improved control and understanding of nanoparticle aggregation and coalescence during synthesis.


Article
Epitaxial and Structural Analysis of Nickel-Manganese-Gallium Films Prepared by Magnetron Sputtering

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Abstract

In order to obtain Ni-Mn-Ga epitaxial films crystallized in martensite structures showing magnetic-induced rearrangement of martensite variants, a fine control of the composition is required. Here we present how the co-sputtering process might be helpful in the development of Ni-Mn-Ga epitaxial films. A batch of epitaxial Ni-Mn-Ga films deposited by co-sputtering of a Ni-Mn-Ga ternary target and a pure manganese target has been studied. The co-sputtering process allows a precise control of the film compositions and enables keeping the epitaxial growth of Ni-Mn-Ga austenite during deposition at high temperature. It gives rise to tune the content of the MIR-active 14-modulated martensite in the film at room temperature, as well as micro and macro-twinned domains sizes.


Article
Effect of Gas Mixing Ratio on Energy Band Gap of Mixed-Phase Titanium Dioxide Nanostructures Prepared by Reactive Magnetron Sputtering Technique

Authors: Esraa A. Al-Oubidy --- Firas J. Al-Maliki
Pages: 19-23
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Abstract

In this work, a homemade dc closed-field unbalanced reactive magnetron sputtering system was used to prepare high-quality and highly pure titanium dioxide nanostructures. The operation parameters of the magnetron sputtering system were optimized to prepare TiO2 nanostructures as thin films on glass substrates. These films were characterized by x-ray diffraction, scanning electron microscopy, atomic force microscopy and Fourier-transform infrared spectroscopy. Both anatase and rutile phases were identified. From the UV-visible spectroscopy, the indirect energy band gap was determined to be 3.30-3.38 eV. The mixing ratio of argon and oxygen (Ar:O2) gases was found very important to control the structural and optical characteristics of the prepared nanostructures.


Article
The Properties and Applications of Quantum Dots

Pages: 24-24
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Abstract

Quantum dots (QD) are zero-dimensional materials, which can confine electrons and exhibit quantum mechanical behavior. Quantum dots are considered as a special class of semiconductor whose energy gap and energy levels spacing depends on the size of the particles. Due to this we can observe many interesting electronic properties of quantum dots.


Article
Formation of Mid-Infrared Slot Antenna Arrays on Thin Al2O3/Si Structures Fabricated by Atomic Layer Deposition

Authors: Amjd A. Salman --- Malik S. Ashoor
Pages: 25-28
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Abstract

The vertical distribution of the electric field enhancement produced by optical antennas could be experimentally confirmed. The combination of the antenna and a quantum cascade laser would yield attractive mid-infrared microscopic analysis to detect a solid state surface. In this work, slot antenna arrays were formed on a thin Al2O3 layer grown by atomic layer deposition on a silicon substrate. Reflectivity spectra measured in the mid-infrared range showed characteristic aspects, presumably caused by the surface phonon polariton of a SiO2 layer naturally formed on the Si substrate. When the Al2O3 layer thickness was 6 nm, such spectral features disappeared. In this way, we could estimate experimentally the electric field distribution normal to the surface of the substrate.


Article
X-Ray Absorption Fine Structure Spectroscopy of Alumina-Supported Copper Oxide for Conversion Electron Yield Detection

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Abstract

In this work, the in-situ x-ray absorption fine structure cell was developed for the conversion electron yield detection to characterize active metal species under reaction gas atmosphere. The probe depth was estimated to be about 9 nm at the Cu K edge. The in-situ conversion electron yield cell was applied to the shape-controlled γ-Al2O3-supported Cu2O catalyst. The reduction to Cu(0) by H2 of octahedral Cu2O particles proceeded at lower temperature than cubic particles, indicating that the surface atomic arrangement affects to the redox reaction of solid particles.


Article
Nanostructured CdSnSe Thin Films Prepared by DC Plasma Sputtering of Thermally Casted Targets

Authors: Oday A. Hammadi
Pages: 33-36
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Abstract

In this work, nanostructured cadmium tin selenide (CdSnSe) thin films were deposited on glass substrates by dc plasma sputtering technique. The sputtered target was prepared by the thermal casting of Cd, Sn and Se samples at 350°C. The structural characterizations showed that the prepared targets were polycrystalline while the deposited CdSnSe films exhibited amorphous structure due to the growth of nanostructures on the substrates, which was also confirmed by the scanning electron microscopy. These films showed high absorption in the ultraviolet and visible regions while low absorption was observed in the near-infrared region (>800nm). They have two allowed types of energy band gaps; indirect at 1.233eV and direct at 1.655eV. The dispersion relationship showed that these films have approximately constant refractive index in the visible region, which is attributed to the optical homogeneity of the prepared films.


Article
IJAP Subject Index 2005-2018
فهرس موضوعات البحوث المنشورة في المجلة 2005-2018

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Abstract

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
IJAP Copyright Release Form
استمارة نقل حقوق الطباعة والنشر والوزيع

Authors: Editorial Board
Pages: 49-49
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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.


Article
Table of Contents (Vol. 14, No. 4, September-October 2018)
قائمة محتويات المجلد الرابع عشر العدد الرابع الصادر في أيلول-كانون الأول 2018

Authors: Editorial Board
Pages: 50-50
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Instructions to Authors 2 Gas Phase Growth Techniques for Quantum Dots: An Overview 3-12 W.Q. Wang, M.Z. Jiang Epitaxial and Structural Analysis of Nickel-Manganese-Gallium Films Prepared by Magnetron Sputtering 13-18 A.H. Abbas, J. Tillier, D. Bourgault, L. Carbone Effect of Gas Mixing Ratio on Energy Band Gap of Mixed-Phase Titanium Dioxide Nanostructures Prepared by Reactive Magnetron Sputtering Technique 19-23 E.A. Al-Oubidy F.J. Al-Maliki The Properties and Applications of Quantum Dots 24 Formation of Mid-Infrared Slot Antenna Arrays on Thin Al2O3/Si Structures Fabricated by Atomic Layer Deposition 25-28 A.A. Salman, M.S. Ashoor X-Ray Absorption Fine Structure Spectroscopy of Alumina-Supported Copper Oxide for Conversion Electron Yield Detection 29-32 R.J. Alwan, M.F. Mahmood, S.R. Khalaf Nanostructured CdSnSe Thin Films Prepared by DC Plasma Sputtering of Thermally Casted Targets 33-36 O.A. Hammadi IJAP Subject Index 2005-2018 37-42 IJAP Author Index 2005-2018 43-48 Iraqi Journal of Applied Physics (IJAP) Copyright Form 49 Contents 50

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