Z. Hassan
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View article: Disconnected captive domination in graphs
Disconnected captive domination in graphs Open
In this paper, disconnected captive domination, a novel domination model in graphs is introduced. The proper subset of the vertices of a graph is a disconnected captive dominating set if it is a total dominating set each vertex in this set…
View article: Effect of Soaking Maize Seeds with Nano-Iron Fertilizer on Germination, Yield and Animal’s Physiological Characteristics toxicity
Effect of Soaking Maize Seeds with Nano-Iron Fertilizer on Germination, Yield and Animal’s Physiological Characteristics toxicity Open
A field experiment was conducted during the spring season of 2021 in the Experimental field of the College of agricultural engineering sciences - university of Baghdad with the aim of knowing the effect of soaking seeds with nano-iron at c…
View article: SOURCES OF STRESS AND PSYCHOLOGICAL MORBIDITY AMONG UNDERGRADUATE PHYSICAL THERAPY STUDENTS
SOURCES OF STRESS AND PSYCHOLOGICAL MORBIDITY AMONG UNDERGRADUATE PHYSICAL THERAPY STUDENTS Open
Background: Academic stress is a pervasive issue among healthcare students and has been shown to significantly affect mental well-being. Physiotherapy education, with its evolving curriculum and increasing clinical demands, exposes student…
View article: Evaluation of Pakistan's Police Order 2002: An Analysis of Current Execution, Weaknesses, and Reformation Ideas
Evaluation of Pakistan's Police Order 2002: An Analysis of Current Execution, Weaknesses, and Reformation Ideas Open
This research consisting on both quantitative and qualitative data which is extracted from surveys and official government reports, and data published by security forces agencies. This present research will help out to explore flaws crimin…
View article: A review on potential use of cerium oxide and doped cerium oxide as high dielectric constant seed layers for overgrowth of cerium oxide nanostructures
A review on potential use of cerium oxide and doped cerium oxide as high dielectric constant seed layers for overgrowth of cerium oxide nanostructures Open
In this review, an introduction to nanostructured films focusing on cerium oxide (CeO 2 ) as high dielectric constant ( k ) material for silicon-based metal-oxide-semiconductor devices, and subsequently background of using low k silicon di…
View article: Characteristics of InGaN/AlN heterostructure grown by using MOCVD technique
Characteristics of InGaN/AlN heterostructure grown by using MOCVD technique Open
International audience
View article: Enhancement of Structural and Optical Characteristics of Nanostructured InGaN Using Electrochemical Etching
Enhancement of Structural and Optical Characteristics of Nanostructured InGaN Using Electrochemical Etching Open
In this work, we used an alternating current electrochemical etching technique to fabricate nanostructured InGaN in potassium hydroxide, which serves as an electrolyte. The effects of different current densities during alternating current …
View article: Electrochemical fabrication and characterizations of Ag/AgCl pseudo-reference electrode: a preliminary study
Electrochemical fabrication and characterizations of Ag/AgCl pseudo-reference electrode: a preliminary study Open
In this work Ag/AgCl planar pseudo-reference electrodes (pREs) were fabricated and studied. The pRE was derived from typical copper-cladded flame retardant 4 (FR4) board, with layers of Ni, Au, and Ag electrochemically deposited sequential…
View article: Nanomanipulation of Functionalized Gold Nanoparticles on GaN
Nanomanipulation of Functionalized Gold Nanoparticles on GaN Open
Gold nanoparticles (AuNPs) is known for its high surface area to volume ratio which acts as an excellent receptor when placed in between electrodes in sensors application. Microelectrodes which are bar and needle shape pointed ends with tw…
View article: Electrical Properties of GaN Cap Layer for AlGaN/GaN HEMT
Electrical Properties of GaN Cap Layer for AlGaN/GaN HEMT Open
Metal organic chemical vapor deposition (MOCVD) was used to grow AlGaN/GaN HEMT on a sapphire substrate with a 3.0 nm GaN cap and a sample without a GaN cap. High resolution X-ray diffraction (HRXRD) was utilized to investigate the structu…
View article: Rapid Thermal Annealing Process Toward Enhancement of ITO Thin Films
Rapid Thermal Annealing Process Toward Enhancement of ITO Thin Films Open
Indium tin oxide (ITO) thin films with 100 nm thickness were successfully deposited on soda-lime glass substrates by metal oxide electron beam evaporation at room temperature. The deposited films were post annealed via rapid thermal proces…
View article: Using the Rods as Collector and Study of its Effect on Morphology and Uniformity of Nanofibers via Electrospinning
Using the Rods as Collector and Study of its Effect on Morphology and Uniformity of Nanofibers via Electrospinning Open
Nanotechnology research has lacked to provide new studies on nanofibers using the electrospinning method, the reasons are attributed that all parameters have been covered by previous studies. Believing that science is in a state of constan…
View article: Fabrication of PS/Al Nanocomposites as Foils and Evaluation of their Optical Properties
Fabrication of PS/Al Nanocomposites as Foils and Evaluation of their Optical Properties Open
In this work, polystyrene/aluminium (PS/Al) nanocomposites were fabricated based on the various concentrations (0, 1, 5, 10, and 15 mg) of Al nanoparticles using the casting method. The resulting polymer/metal nanocomposites have good opti…
View article: Effects of post-deposition annealing temperatures in argon ambient on structural, optical, and electrical characteristics of RF magnetron sputtered gallium oxide films
Effects of post-deposition annealing temperatures in argon ambient on structural, optical, and electrical characteristics of RF magnetron sputtered gallium oxide films Open
Different post-deposition annealing temperatures were carried out in argon ambient to investigate the corresponding effects onto structural, morphological, optical, and electrical characteristics of RF magnetron sputtered gallium oxide (Ga…
View article: Carrier Density and Thickness Optimization of InxGa1-xN Layer by Scaps-1D Simulation for High Efficiency III-V Solar CelL
Carrier Density and Thickness Optimization of InxGa1-xN Layer by Scaps-1D Simulation for High Efficiency III-V Solar CelL Open
In this study, the indium gallium nitride (InxGa1-xN) p-n junction solar cells were optimized to achieve the highest conversion efficiency. The InxGa1-xN p-n junction solar cells with the whole indium mole fraction (0 £ x £ 1) were simulat…
View article: Realization of UV-C absorption in ZnO nanostructures using fluorine and silver co-doping
Realization of UV-C absorption in ZnO nanostructures using fluorine and silver co-doping Open
In this study, we realized absorption in UV-C region using silver (Ag) and fluorine (F) co-doping in zinc oxide (ZnO). Also, the influence of Ag and F co-doping in ZnO on the morphological, compositional, structural, and optical properties…
View article: Preface
Preface Open
A path for creating an advanced society is being paved with nanotechnology, which is a transformational path for Industry 4.0. It contributes benefits in many important domains, including medicine, energy, environmental protection, constru…
View article: Influence of etching time on the porous p-type gallium nitride using alternating current photo-assisted electrochemical etching technique
Influence of etching time on the porous p-type gallium nitride using alternating current photo-assisted electrochemical etching technique Open
The inflow of foreign worker into Malaysia has been observed as causing many problems. The objective of this study is to determine the social and work related problems associated with the employment of foreign workers in civil engineering …
View article: A comparison study of ZnO, InZnO, GaZnO and InGaZnO physical properties and optical bandgap
A comparison study of ZnO, InZnO, GaZnO and InGaZnO physical properties and optical bandgap Open
Comparison between ZnO, InZnO, GaZnO and InGaZnO (IGZO) thin films prepared using spin coating method were studied in detail to find out contribution of In and Ga towards changes in the physical properties. From FESEM, ZnO has revealed an …
View article: Synthesis of zinc oxide nanotwins using electrochemical deposition technique at different current densities
Synthesis of zinc oxide nanotwins using electrochemical deposition technique at different current densities Open
The electrochemical deposition (ECD) of metal oxides has revealed distinct structural features in semiconductors. Zinc oxide (ZnO) nanotwins were directly deposited on commercial conductive indium tin oxide (ITO) glass via ECD using two-el…
View article: Effect of Dry Oxidation and Thermal Annealing on AlN/GaN/AlN/Si (111) and Evaluation of its Electrical Characteristics
Effect of Dry Oxidation and Thermal Annealing on AlN/GaN/AlN/Si (111) and Evaluation of its Electrical Characteristics Open
We proposed a technique for improving the platinum (Pt) Schottky contact dark current of the AlN/GaN/AlN/Si(111) substrate. The AlN/GaN/AlN/ heterostructure sample was successfully grown on a silicon substrate by radio frequency molecular …
View article: Improvement of Porous GaN-Based UV Photodetector with Graphene Cladding
Improvement of Porous GaN-Based UV Photodetector with Graphene Cladding Open
This work presents the role of graphene in improving the performance of a porous GaN-based UV photodetector. The porous GaN-based photodetector, with a mean pore diameter of 35 nm, possessed higher UV sensitivity, about 95% better compared…
View article: The role of growth temperature on the indium incorporation process for the MOCVD growth of InGaN/GaN heterostructures
The role of growth temperature on the indium incorporation process for the MOCVD growth of InGaN/GaN heterostructures Open
Purpose The purpose of this paper is to investigate the effect of growth temperature on the evolution of indium incorporation and the growth process of InGaN/GaN heterostructures. Design/methodology/approach To examine this effect, the InG…
View article: Effect of indium pre-flow on wavelength shift and crystal structure of deep green light emitting diodes
Effect of indium pre-flow on wavelength shift and crystal structure of deep green light emitting diodes Open
To produce a deep green (530 nm–570 nm) LED, the suitable indium (In) composition in the In x Ga 1-x N/GaN multi-quantum well (MQW) structure is crucial because a lower indium composition will shift the wavelength of emission towards the u…
View article: The Effect of Medium Inhomogeneity in Modeling Underwater Optical Wireless Communication
The Effect of Medium Inhomogeneity in Modeling Underwater Optical Wireless Communication Open
This paper introduces a stratified approach to modeling underwater optical wireless communication (UOWC). The influence of medium inhomogeneity, which many researchers ignore, was considered in modeling the UOWC channel to achieve an accur…
View article: Growth and Characterization of Ternary Hf<i><sub>x</sub></i>Ta<i><sub>y</sub></i>O<i><sub>z</sub></i> Films via Nitrogen-Infused Wet Oxidation
Growth and Characterization of Ternary Hf<i><sub>x</sub></i>Ta<i><sub>y</sub></i>O<i><sub>z</sub></i> Films via Nitrogen-Infused Wet Oxidation Open
Nitrogen-infused wet oxidation at different temperatures (400-1000 °C) was employed to transform tantalum-hafnia to hafnium-doped tantalum oxide films. High-temperature wet oxidation at 1000 °C marked an onset of crystallization occurring …
View article: High-k La<sub>x</sub>Ce<sub>y</sub>O<sub>z</sub> for Passivation of Si Substrate
High-k La<sub>x</sub>Ce<sub>y</sub>O<sub>z</sub> for Passivation of Si Substrate Open
High dielectric constant rare earth lanthanum cerium oxide (LaxCeyOz) films have been studied as the passivation layers for silicon substrate. Effects of post-deposition annealing time (15, 30, and 45 min) at 700°C towards capacitance-volt…
View article: Luminescence Characteristics of Hybridized Polyfluorene
Luminescence Characteristics of Hybridized Polyfluorene Open
This study was to investigate luminescence characteristics of polyfluorene (PF) hybridized with silicone (agar sample) in term of the potential application in optoelectronic. The hybridization was accomplished by preparing silicone mixture…