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Now showing items 11-20 of 62
ZnO/Al2O3 layered structures deposited by RF magnetron sputtering on glass: growth characteristics, optical properties, and microstructural analysis
(12.08.2021)
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. ...
Modeling of Schottky diode characteristic by machine learning techniques based on experimental data with wide temperature range
(18 Ekim 20)
In this study, 4 common machine learning methods have been used to model the I–V characteristic of the Au/Ni/n-GaN/undoped GaN Schottky diode. The current values of previously produced Au/Ni/n-GaN/undoped GaN Schottky diode ...
A comparative study of hardness/scratch/wear properties of TiCN and TiAlN coatings on DIN 1.2842 steel by CA-PVD method
(2021)
In the present study, TiCN and TiAlN were deposited on DIN 1.2842 (AISI O2) steel, and their mechanical properties was compared by investigating coating thickness, adhesion strength, microhardness, and elastic modulus. To ...
ZnO/Al2O3 layered structures deposited by RF magnetron sputtering on glass: growth characteristics, optical properties, and microstructural analysis
(12.07.2021)
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. ...
A Novel and Eco‑friendly Approach for the Simultaneous Recovery of Copper and Diamond from Waste Cutting Segments via Electrodissolution/Deposition
(2021)
A new approach is brought to diamond recovery from waste cutting segments. Unlike the commonly used hydrometallurgical processes, this approach offers the simultaneous recovery of copper with diamond. Besides, instead of ...
Numerical simulation of linear and nonlinear optical properties in heterostructure based on triple Gaussian quantum wells: effects of applied external fields and structural parameters
(26.07.2021)
In this work, we present a theoretical simulation of the impact of applied external
fields and structural parameters on the total (linear plus nonlinear) optical absorption
coefficient (TOAC) and total refractive relative ...
Combined effects of electric, magnetic, and intense terahertz laser fields on the nonlinear optical properties in GaAs/GaAlAs quantum well with exponentially confinement potential
(15.11.2021)
We are presenting a theoretical investigation on the effects of applied electric,
magnetic, and non-resonant intense laser field on the coefficients of intersubband linear,
third-order nonlinear, and total optical ...
Influence of the PALE growth temperature on quality of MOVPE grown AlN/Si (111)
(02.02.2021)
at different growth temperatures by metal organic vapor phase epitaxy (MOVPE) technique. The oxygen (O) and
silicon (Si) concentrations of grown PALE-AlN epilayers and interface between epilayer and substrate were ...
Arsine Flow Rate Effect on the Low Growth Rate Epitaxial InGaAs Layers
(07.06.2021)
Effect of arsine (AsH3) flow rate on epitaxially grown unintentionally doped and low-growth rate
InGaAs layer by using metal organic vapor phase epitaxy at growth temperature 640°C are investigated. While
all other sources ...
The efect of microwave and ultrasound activation on the characteristics of biochar produced from tea waste in the presence of H3PO4 and KOH
(Springer, 14.08.2021)
The mechanism of chemical and physical activation during biomass pyrolysis is crucial for the more efective use of biomass
and the preparation of functional porous biochemical materials. In this study, raw tea waste (RTW) ...