Fizik Bölümü Makale Koleksiyonu: Recent submissions
Now showing items 141-160 of 193
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Gallium oxide films deposition by RF magnetron sputtering; a detailed analysis on the effects of deposition pressure and sputtering power and annealing
(2021)In this study, gallium oxide (Ga2O3) thin films were deposited on sapphire and n-Si substrates using Ga2O3 target by radio frequency magnetron sputtering (RFMS) at substrate temperature of 300 ◦C at variable RF power ... -
Characterization of multilayer Al doping in ZnO
(2021)ZnO, ZnO/Al, Al/ZnO/Al, and ZnO/Al/ZnO samples were deposited on c-plane sapphire and Si substrates by radio frequency magnetron sputtering (RFMS) using ZnO target. In order to form doped ZnO:Al thin films, these grown ... -
Investigation of nitrogen doped ZnO thin films: Effects on their structural and optical properties
(2021)Un-doped and nitrogen-doped ZnO thin films were grown by using radio frequency (RF) magnetron sputtering method changing the nitrogen flow rate between 0% ����� 12.5% and the thickness dependence of films was determined. ... -
ZnO/Al2O3 layered structures deposited by RF magnetron sputtering on glass: growth characteristics, optical properties, and microstructural analysis
(2021)In this study, Al2O3 thin films of different thicknesses (50 nm, 100 nm, 150 nm, 200 nm, and 250 nm) were, first, grown using RF magnetron sputtering technique on glass substrate at 30 °C temperature, with 120Wpower value. ... -
Investigation of optical, electronic, and magnetic properties of p-type NiO thin film on different substrates
(2021)In this study, high-quality p-type NiO semiconductor thin film was investigated using the thermal evaporation method after thermal oxidation of as-deposited 50 nm Ni film at 450◦C for 2.5 h. NiO thin film simultaneously ... -
Vcsel Tabanlı Yüksek Güçlü Yarıiletken Lazerler TÜBİTAK-1003
(2021)Proje Özeti VCSEL’ler (vertical-cavity surface-emitting laser, düşey- kovuklu yüzey-ışımalı lazer) yirmi yılı aşkın bir süredir giderek büyüyen veri iletişimi (datacom) alanının anahtar parçalarından birisidir. Bunun yanında ... -
Estimation of the wind speed in Sivas province by using the artificial neural networks
(2021)In this study, the artificial neural network (ANN) method was used for estimating the monthly mean wind speed of Sivas, in the central part of Turkey. Eighteen years of wind speed data obtained from nine measurement stations ... -
Estimations of (n, p) reaction cross-sections at 14.5 MeV incident neutron energy by artificial neural networks
(2021)The cross-sections for (n, p) reactions around 14 MeV are important for nuclear research field and applications of nuclear energy. Also these neutron-induced reactions have been extensively studied in the literature. In ... -
Neuro-fuzzy modeling of deformation parameters for fusion-barriers
(2021)The fusion-barrier distribution is very sensitive to the structure of the colliding nuclei such as nuclear quadrupole and hexadecapole deformation parameters and their signs. If the nuclei that enter the fusion reaction ... -
Effect of intense laser and electric fields on nonlinear optical properties of cylindrical quantum dot with Morse potential
(2021)In this study, the effects of the external static electric field and high-frequency intense laser field (ILF) on the nonlinear optical properties, such as the relative refractive index changes (RRICs) and the total optical ... -
Plasma-embedded positronium atom with energy-dependent potential
(2021)In this study, for the first time, the positronium atom embedded in the plasma environment with energy-dependent potential interaction, under spherical confinement is investigated. The more general exponential cosine ... -
Influence of applied external fields on the nonlinear optical properties of a semiinfinite asymmetric AlxGa1-xAs/GaAs quantum well
(2021)The asymmetric potential profiles are of great interest from the nonlinear optical properties point of view for semiconductor devices. The reason for this statement is because the existing theories on nonlinear optical ... -
Optical properties of a triple AlGaAs/GaAs quantum well purported for quantum cascade laser active region
(2021)A theoretical investigation on the conduction electron states in a triple inverse parabolic AlGaAs/GaAs quantum well, designed in the spirit of the active region for a quantum cascade laser, is performed. The study includes ... -
Charge-Current Output in Plasma-Immersed Hydrogen Atom with Noncentral Interaction
(2021)A theoretical investigation on the charge-currents and the induced magnetization of the hydrogen atom with noncentral interaction, immersed in plasma environment, under the influence of spherical encompassing is brought ... -
Influence of applied external fields on the nonlinear optical properties of a semi-infinite asymmetric AlGaAs/GaAs quantum well
(2021)The asymmetric potential profiles are of great interest from the nonlinear optical properties point of view for semiconductor devices. The reason for this statement is because the existing theories on nonlinear optical ... -
Plasma-embedded positronium atom with energy-dependent potential
(2021)In this study, for the first time in the related literature, the positronium atom embedded in the plasma environment with energy-dependent potential interaction, under spherical confinement, is investigated. The more ... -
Optical properties of a triple AlGaAs/GaAs quantum well purported for quantum cascade laser active region
(2021)A theoretical investigation on the conduction electron states in a triple inverse parabolic AlGaAs/GaAs quantum well, designed in the spirit of the active region for a quantum cascade laser, is performed. The study includes ... -
Yüksek Güç-Frekans Uygulamaları İçin MOCVD ile Epitaksiyel AlN Kristalinin Büyütülmesi, Katkılanması, Karakterizasyonu ve Aygıt Üretimi
(15.03.2021)Yüksek Güç-Frekans Uygulamaları İçin MOCVD ile Epitaksiyel AlN Kristalinin Büyütülmesi, Katkılanması, Karakterizasyonu ve Aygıt Üretimi -
Vcsel Tabanlı Yüksek Güçlü Yarıiletken Lazerler
(15.01.2021)Proje Özeti VCSEL’ler (vertical-cavity surface-emitting laser, düşey- kovuklu yüzey-ışımalı lazer) yirmi yılı aşkın bir süredir giderek büyüyen veri iletişimi (datacom) alanının anahtar parçalarından birisidir. Bunun ... -
Search for the anomalous WWγcouplings through the process e−e+→νeνeγat ILC with unpolarized and polarized beams
(22 July 20)We investigate the anomalous W+W−γcouplings through the process e−e+→νeνeγfor unpolarized and polarized electron (positron) beams at the International Linear Collider. We give the 95%Confidence Level limits on the anomalous ...