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Optimization of temperature and pretreatments for methane yield of hazelnut shells using the response surface methodology
(Elsevier, 2020)
In this study, NaOH pretreatment, H2SO4 pretreatment, thermal pretreatment and production temperature were
optimized to ensure maximum methane yield from hazelnut shells (HS) using the response surface methodology
(RSM). ...
Optical and nano-mechanical characterization of c-axis oriented AlN film
(2022)
This paper reports the temperature effects on the optical properties of metalorganic vapour-phase epitaxy
(MOCVD) grown c-axis oriented AlN epilayer thin film studied by in-situ high-temperature spectroscopic
ellipsometry. ...
Improving the Electrochemical Energy Storage Capacity of the Renewable Carbon Derived from Industrial Tea Waste
(29.06.2022)
Energy storage is gaining a vital role since the usage of portable electric/electronic devices and
vehicles have been growing. Capacitors, called as electrochemical double layer capacitors or supercapacitors,
find ...
Effect of Chemical Composition of Boriding Agent on the Optimization of Surface Hardness and Layer Thickness on AISI 8620 Steel by Solid and Liquid Boriding Processes
(08.10.2022)
Surfaces of cam shafts made of AISI 8620 steels were hardened by boriding processes in both solid and liquid mediums. Various chemical agents were used to achieve boride layers on the surfaces of the cam shafts in these ...
ystematic optical study of high-x InxGa1-xAs/InP structures for infrared photodetector applications
(2022)
Optical and structural properties in high-x InxGa1-xAs (x > 0.65) samples with varying indium concentration
grown on InP (100) substrate are reported. By increasing the indium fraction, it was found by the high-resolution
X-ray ...
Sensitivity of indium molar fraction in InGaN quantum wells for near-UV light-emitting diodes
(2022)
InGaN-based quantum wells (QWs) have higher threading dislocation density (TDD) in InGaN
Light-emitting diode (LED). Despite of higher TDD, variation of Indium (In) molar fraction in the
QW generate localized excitons ...
The influence of TMGa pre-flow time and amount as surfactant on the structural and optical properties of AlN epilayer
(2022)
AIN is used as a template layer for deep UV (DUV) emitter and detector applications, because of
its wide bandgap and high thermal conductivity. In this study, trimethylgallium (TMGa) source is
used as surfactant to improve ...
Growth and characterization of PALE Si-doped AlN on sapphire substrate by MOVPE
(2022)
In this study, we report different SiH4 flow condition effects on crystal, surface, optical, and electrical characteristics of heteroepitaxial Metal-Organic Vapor Phase Epitaxy (MOVPE) grown AlN layers on sapphire substrates. ...
Performance enhancement of AlGaN deep-ultraviolet laser diode using compositional Al-grading of Si-doped layers
(2022)
Achieving high threshold current density and high optical confinement are big challenges in the realization of
high-performance aluminum gallium nitride (AlGaN)-based deep-ultraviolet (DUV) laser diode (LD). In this
work, ...
Close oxygen coupled low-pressure chemical vapor deposition growth of high quality β-Ga2O3 on sapphire
(2022)
We report on the close oxygen coupled low-pressure chemical vapor deposition (COC-LPCVD) hetero-epitaxial growth of atomically smooth (− 201) oriented β−
Ga2O3 on c-plane sapphire. Utilizing a dedicated line within the ...