OICC PRESS The effects of applying different bias voltages and phase differences on performance of an asymmetric surface dielectric barrier discharge; an experimental investigation Volume 13 (2019) Issue 3, May 2019 2022 12 27 The effects of applying different bias voltages and phase differences on performance of an asymmetric surface dielectric barrier discharge; an experimental investigation 10.1007/s40094-019-0334-3 EN Hoda Mahdavi Department of Atomic and Molecular Physics, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Mazandaran 47416‑95447, Iran Farshad Sohbatzadeh Department of Atomic and Molecular Physics, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Mazandaran 47416‑95447, Iran Journal Article 2022 12 27 AbstractIn the present research, the performance of the electrohydrodynamic force in an asymmetric surface dielectric barrier discharge actuator has been investigated at different bias voltages. The effects of DC, AC plus DC (DC-offset), and sinusoidal bias voltages on the force generation have been studied through measuring the electric wind velocity profiles, surface potential, and electric field. The results showed that applying DC and DC-offset biases to the lower electrode instead of connecting it to the ground in a typical case increased the charge deposition on the dielectric surface and consequently reduced the electrohydrodynamic force generation. This effect was also observed in case of exchanging these voltages with AC sinusoidal voltage of the upper electrode. In addition, as a new idea, two-phase shifted AC voltage was applied to the electrodes and the resulting changes have been studied. The obtained results at 180∘documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$180^{^circ }$$end{document} phase difference were very noticeable and showed 46% improvement in the maximum velocity of the induced flow relative to the grounded electrode with the same input power. Using this technique, a certain wind velocity can be obtained at relatively lower voltages and input powers compared to the conventional case of grounding the lower electrode. Such a capability is significant in aerodynamic applications, where applying large values of the high voltages may disturb the operational systems.

OICC PRESS Numerical modeling of a DBD in glow mode at atmospheric pressure Volume 13 (2019) Issue 3, May 2019 2022 12 27 Numerical modeling of a DBD in glow mode at atmospheric pressure 10.1007/s40094-019-00340-w EN A. Saridj Département de l’Electrotechnique, Faculté de Génie Electrique, Université des sciences et de technologie d’Oran (USTO-MB), BP 1505, El M’Naouer, Oran, Algeria 0000-0002-0325-2380 A. W. Belarbi Département de l’Electrotechnique, Faculté de Génie Electrique, Université des sciences et de technologie d’Oran (USTO-MB), BP 1505, El M’Naouer, Oran, Algeria Journal Article 2022 12 27 AbstractIn this work, a fluid model of helium glow discharge at atmospheric pressure in a dielectric barrier discharge configuration has been developed and the discharge was numerically simulated. The transport equations for charged and excited species are self-consistent coupled to the Poisson equation for the electrical field calculation. A finite difference method technique is adopted; a detailed numerical procedure modeling is given. The addition of some nitrogen impurities to the helium successfully reproduced the discharge evolution during the breakdown. The numerical results showed that the discharge has a structure similar to DC low-pressure glow discharges and confirms the establishment of the glow regime at atmospheric pressure under very adequate conditions. The profiles of physical and electrical discharge parameters knowing that, particle densities, electric field, drift velocity, voltages and discharge current are presented and analyzed. A detailed study was made of the effect of nitrogen impurities on the stability of the glow mode of the discharge, and on the evolution of its parameters.

OICC PRESS Structural, electronic and optical properties of graphene-like nano-layers MoX2(X:S,Se,Te): DFT study Volume 13 (2019) Issue 3, May 2019 2022 12 27 Structural, electronic and optical properties of graphene-like nano-layers MoX2(X:S,Se,Te): DFT study 10.1007/s40094-019-0333-4 EN F. Lahourpour Department of Physics, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran A. Boochani Department of Physics, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran Sara Sadat Parhizgar Plasma Physics Research Center, Science and Research Branch, Islamic Azad University Seyed Mohammad Elahi Department of Physics, Faculty of Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran Journal Article 2022 12 27 AbstractUsing the first principle calculations, the structural, electronic and optical properties of the monolayer graphene-like MoX2 sheet are calculated. Our results show that the chalcogenide atoms in the stability and the lattice parameters of the MoX2 sheet have a key role, although it is known that the electronic properties are more dependent on the metal atoms in these sheets. Our data also confirm semiconductor behavior of the MoX2 monolayers with direct band gap for S, Se and Te chalcogenides. Compared with the bulk compounds, they have similar structural properties but represent unique electronic and optical properties that can be used in nano-devices, nano-electronics and so on. In this work, the investigation of the chalcogenide atoms role in modifying the optical properties of these single-layer sheets, such as absorption and refraction coefficients, is carried out; the dielectric constant plays an important role. We also try to study the possibility of using these compounds on the solar energy industries and optical devices.

OICC PRESS Formation of highly nonlinear dust-acoustic solitary waves due to high-temperature electrons and ions Volume 13 (2019) Issue 3, May 2019 2022 12 27 Formation of highly nonlinear dust-acoustic solitary waves due to high-temperature electrons and ions 10.1007/s40094-019-0335-2 EN M. Emamuddin Department of Physics, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh Present Address: Jahangirnagar University, Savar, Dhaka 1342, Bangladesh A. A. Mamun Department of Physics, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh Journal Article 2022 12 27 AbstractThe nonlinear propagation of dust-acoustic solitary waves (DASWs) in an unmagnetized dusty plasma consisting of two distinct temperature ions, two distinct temperature electrons and mobile dust fluid has been investigated by employing reductive perturbation method. It has been assumed that the two distinct temperature ions follow the Maxwell–Boltzmann distribution and nonthermal (Cairn’s) distribution separately while the two distinct temperature electrons follow the nonextensive (Tsallis) distribution and superthermal (Kappa) distribution separately. The system has been treated by deriving and solving a set of three highly nonlinear equations such as K-dV, modified K-dV and Gardner equations. It has been noted that the basic properties of the DASWs are significantly modified by the presence of the nonthermal ions, nonextensive electrons and superthermal electrons. The possible applications of this investigation in astrophysical, space and laboratory plasma systems have also been briefly addressed.

OICC PRESS Double critical coupled ring resonator-based add–drop filters Volume 13 (2019) Issue 3, May 2019 2022 12 27 Double critical coupled ring resonator-based add–drop filters 10.1007/s40094-019-00343-7 EN Mahdi Bahadoran Department of Physics, Shiraz University of Technology, Shiraz, Fars 31371555, Iran Iraj Sadegh Amiri Computational Optics Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, District 7, Ho Chi Minh City 700000, Vietnam Faculty of Applied Sciences, Ton Duc Thang University, District 7, Ho Chi Minh City 700000, Vietnam Journal Article 2022 12 27 AbstractIn this paper, we introduced double-critical coupling condition (DCCC) for lossy mode couplers of the add–drop resonator to achieve the desirable and tunable signals required for optical communication and photonics sensors applications. The performance of add–drop resonator under double-critical condition is simulated and analyzed. Some equations were derived for optical parameters including full width at half maximum (FWHM), the out-of-band rejection ratio (OBRR), quality factor and the crosstalk of the add–drop resonator, and the output signals were examined as a function of DCCC. Based on double-critical condition, the OBRR values larger than 40 dB, the crosstalk larger than 50 dB, highest quality factor of 9000 and the FWHM as small as 0.17 nm were realized in silicon add–drop resonator, which are quite compatible with the reported experimental data. Double-critical condition shows that the lossless coupling is not enough condition to acquire high-quality filtered signal with a large crosstalk and in presence of coupling losses, the DCCC can determine the optimum relation between the strength of coupling coefficients and the coupling losses.

OICC PRESS Estimation of lattice strain in alumina–zirconia nanocomposites by X-ray diffraction peak profile analysis Volume 13 (2019) Issue 3, May 2019 2022 12 27 Estimation of lattice strain in alumina–zirconia nanocomposites by X-ray diffraction peak profile analysis 10.1007/s40094-019-0338-z EN Apurba Kanti Deb Department of Physics, Raiganj University, Raiganj, Uttar Dinajpur 733134, India 0000-0001-7033-3044 Partha Chatterjee Department of Physics, Vivekananda Mahavidyalaya, Haripal, Hooghly 712405, India 0000-0002-7049-3934 Journal Article 2022 12 27 AbstractZirconia nanoparticles were synthesized by a solution combustion technique. Zirconia nanoparticles were grown inside alumina templates to control the crystal size. The alumina templates were characterized by pores of sizes of approximately 6–8 nm. X-ray diffraction line profile analysis using Williamson–Hall method and Warren and Averbach revealed that the alumina templates were characterized by negligible defect-related effect of lattice distortion. Rietveld structure refinement did not reveal any gross difference with the literature reported values for cell parameters ‘a’ and ‘c’ and fractional atomic coordinates x and z for Al and O atoms indicating no large-scale bond deformation. The template X-ray reflections in the nanocomposites are skewed in nature which indicates some distortion of the templates might have taken place. The distortion is, however, plastic in nature which is evident from the higher level of lattice distortion viz. 0.2% of lattice microstrain.

OICC PRESS Growth and characterization of TiAlN nanoparticles using low-energy plasma focus device Volume 13 (2019) Issue 3, May 2019 2022 12 27 Growth and characterization of TiAlN nanoparticles using low-energy plasma focus device 10.1007/s40094-019-0337-0 EN Hasan Anousha Department of Physics, Faculty of Basic Sciences, Sahand University of Technology, Tabriz, Iran 0000-0001-9395-5292 Eslam Ghareshabani Department of Physics, Faculty of Basic Sciences, Sahand University of Technology, Tabriz, Iran Journal Article 2022 12 27 AbstractIn this experimental study, a 1.5-kJ plasma focus device of Mather type was employed to grow titanium aluminum nitride (TiAlN) coatings at room temperature on 316 stainless steel sub-layer. The anode of the device was made of Titanium and Aluminium. A mixture of N2 and Ar gases was used as the work gas for TiAlN deposition. TiAlN nanoparticles were formed on stainless steel with 0° of the degree with respect to the anode axis by different shots at 5 cm above the anode. X-ray diffraction results indicated the formation of the TiAlN structure on stainless steel. Scanning electron microscopy images demonstrated the approximately uniform growth of TiAlN nanoparticles on the surface. EDX analysis results showed that an increase in the number of the shots increased the deposition of TiAlN on the sub-layer. According to the atomic force microscopy images, the mean thickness of the surface increased as the shots increased in number. Microhardness test results of the thin layers showed that an increase in the number of the shots increased the hardness of the samples.

OICC PRESS Low relativistic effects on the modulational instability of rogue waves in electronegative plasmas Volume 13 (2019) Issue 3, May 2019 2022 12 27 Low relativistic effects on the modulational instability of rogue waves in electronegative plasmas 10.1007/s40094-019-00342-8 EN Chérif S. Panguetna Laboratoire de Mécanique, Département de Physique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun Conrad B. Tabi Laboratoire de Biophysique, Département de Physique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana 0000-0001-6505-7866 Timoléon C. Kofané Laboratoire de Mécanique, Département de Physique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana Conrad B. Tabi Laboratoire de Biophysique, Département de Physique, Faculté des Sciences, Université de Yaoundé I, B.P. 812, Yaoundé, Cameroun Botswana International University of Science and Technology, Private Bag 16, Palapye, Botswana 0000-0001-6505-7866 Journal Article 2022 12 27 AbstractRelativistic ion-acoustic waves are investigated in an electronegative plasma. The use of the reductive perturbation method summarizes the hydrodynamic model to a nonlinear Schrödinger equation which supports the occurrence of modulational instability (MI). From the MI criterion, we derive a critical value for the relativistic parameter α1documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$alpha _{1}$$end{document}, below which MI may develop in the system. The MI analysis is then conducted considering the presence and absence of negative ions, coupled to effects of relativistic parameter and the electron-to-negative ion temperature ratio. Under high values of the latter, additional regions of instability are detected, and their spatial expansion is very sensitive to the change in α1documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$alpha _{1}$$end{document} and may support the appearance of rogue waves whose behaviors are discussed. The parametric analysis of super-rogue wave amplitude is performed, where its enhancement is debated relatively to changes in α1documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$alpha _{1}$$end{document}, in the presence and absence of negative ions.

OICC PRESS Edge of magnetized electronegative plasma ion source in the presence of collisional adiabatic thermal positive ions Volume 13 (2019) Issue 3, May 2019 2022 12 27 Edge of magnetized electronegative plasma ion source in the presence of collisional adiabatic thermal positive ions 10.1007/s40094-019-00341-9 EN Kiomars Yasserian Department of Physics, Faculty of Science, Karaj Branch, Islamic Azad University, Karaj, Iran 0000-0003-4801-5941 Morteza Aslaninejad School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395‑5531, Tehran, Iran Journal Article 2022 12 27 AbstractThis paper develops a theoretical model for formation of multilayers in the magnetized electronegative plasma at the edge of plasma ion source. The impacts of positive ion temperature and collisions are studied and quantified by obtaining the structure of the plasma sheath. By adding the negative ions into the discharge, the solutions of Poisson’s equation become oscillatory. A finite temperature for the positive ions and also the collisions results in a change in the behavior of such oscillatory solutions. Here, it is assumed that the collision frequency depends on the positive ions velocity and thermal positive ions flow is adiabatic. The spatial distribution of the species density, electric potential, and positive ion velocity is calculated for different values of positive ion temperature and negative ion concentration for two limiting cases where the collision frequency either is constant or depends linearly on velocity. In addition, the influence of the plasma parameters such as negative ion density and temperature and positive ion temperature is investigated on the space charge and positive ion flux as well as parameter space region. It is also shown that the presence of the negative ion into the plasma ion source influences the extracted positive ion flux and increases the positive ions intensity.

OICC PRESS Instrumentation for modeling of discharge processes in ignition capacitive systems Volume 13 (2019) Issue 3, May 2019 2022 12 27 Instrumentation for modeling of discharge processes in ignition capacitive systems 10.1007/s40094-019-0339-y EN F. A. Gizatullin Department of Electromechanics, Ufa State Aviation Technical University, Karl Marx str. 12, Ufa, Russia, 450000 R. M. Salikhov Department of Electromechanics, Ufa State Aviation Technical University, Karl Marx str. 12, Ufa, Russia, 450000 0000-0003-2321-6237 N. V. Efimenko Department of Electromechanics, Ufa State Aviation Technical University, Karl Marx str. 12, Ufa, Russia, 450000 A. G. Karimova Department of Electromechanics, Ufa State Aviation Technical University, Karl Marx str. 12, Ufa, Russia, 450000 A. U. Demin Department of Electromechanics, Ufa State Aviation Technical University, Karl Marx str. 12, Ufa, Russia, 450000 Journal Article 2022 12 27 AbstractIn this article, developing a computer model allowing to obtain analytically the dependences of the discharge current i(t) and voltage in a spark discharge U(t) on the given discharge circuit parameters is carried out. A toolkit for evaluating the characteristics of capacitive ignition systems of various types at the stages of creating new circuit technical solutions and engineering has been developed. The obtained results allow to significantly reduce the time for evaluating the potential of ignition systems without carrying out sufficiently complex and labor-intensive experimental studies. The resulting dependences i(t) and U(t) allow to determine and calculate all the main parameters of spark discharges in plugs—energy, power and duration of discharges, as well as the maximum value of the discharge current.

OICC PRESS Effect of doped Zn–PbI2 nanostructures on structural and electrical properties of photodetector applications Volume 13 (2019) Issue 3, May 2019 2022 12 27 Effect of doped Zn–PbI2 nanostructures on structural and electrical properties of photodetector applications 10.1007/s40094-019-00344-6 EN Safaa Idan Mohammed Ministry of Science and Technology, Baghdad, Iraq 0000-0003-4080-2254 Haider Mohammed Shanshool Ministry of Science and Technology, Baghdad, Iraq Khalil Ibraheem Imhan Ministry of Science and Technology, Baghdad, Iraq Journal Article 2022 12 27 AbstractThe present study focuses on the structural and electrical properties of doped zinc–lead iodide (Zn–PbI2) as-deposited film. Lead iodide (PbI2) nanostructure was successfully prepared by thermal evaporation method on a glass substrate at room temperature. The analysis, characterization, and structural properties of PbI2 were achieved using X-ray diffraction (XRD) and scanning electron microscopy. The PbI2 was polycrystalline and had a hexagonal structure as proved using XRD. The measured values are in agreement with other experimental and theoretical data. Furthermore, the present research studied the effect of doping on the physical properties of lead iodide with zinc dopants at different weights (0.02, 0.04, 0.06, and 0.08) mg. The electrical properties of the fabricated metal–semiconductor–metal photodetector based on PbI2 and Pb1−xZnxI2 layers prepared on glass substrates by thermal evaporation method were investigated. The obtained results of Schottky barrier heights for Pb0.98Zn0.02I2 were significant. The current–voltage characteristics of the Pb0.98Zn0.02I2 thin film have acted as a Schottky contact in dark and under white light, 460-nm light. The light responsivity has shown a peak at 460-nm chopped light. At a bias voltage of 1, 3, and 5 V, the photocurrent rise and decay times were investigated. The device has shown faster response times for 460-nm light. This fast response was attributed to the high quality of polycrystalline and showed a high quantum efficiency of 9.19 × 102% when it was illuminated by 460-nm light under the bias of 3 V.

OICC PRESS Heat capacity and entropy of Gaussian spherical quantum dot in the presence of donor impurity Volume 13 (2019) Issue 3, May 2019 2022 12 27 Heat capacity and entropy of Gaussian spherical quantum dot in the presence of donor impurity 10.1007/s40094-019-0336-1 EN Nehal S. Yahyah Physics Department, An-Najah National University, Nablus, West Bank, Palestine Mohammad K. Elsaid Physics Department, An-Najah National University, Nablus, West Bank, Palestine 0000-0002-1392-3192 Ayham Shaer Physics Department, An-Najah National University, Nablus, West Bank, Palestine Journal Article 2022 12 27 AbstractThe energy states of shallow donor impurity in GaAs/AlGaAs quantum dot heterostructure with Gaussian potential have been calculated by the shifted 1/N expansion method. The effects of the impurity on the ground state energy and average statistical energy have been investigated. The present calculations show that the donor impurity modifies significantly the electron energy levels of spherical quantum dot and thermal properties. In addition, we have also displayed the variations of the heat capacity and entropy of donor impurity in quantum dot with the radius, confining potential depth, dimension and temperature. The comparison shows that our results are in very good agreement with the theoretical reported work.