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Now showing items 61-70 of 155
Theoretical analyses of the carrier localization effect on the photoluminescence of In-rich InGaAs layer grown on InP
(5.01.2022)
The free buffer InGaAs/InP structure has been elaborated by Metal Organic Vapor Phase Epitaxy (MOVPE). High
indium content is chosen to reduce the bandgap energy of the ternary material with direct bandgap to be promoted
for ...
In-situ and ex-situ face-to-face annealing of epitaxial AlN
(26.06.2022)
AlN films have been deposited on c-plane sapphire substrates by metalorganic-vapor-phase-epitaxy (MOVPE). The changes in the film structure have been investigated by applying different annealing processes which are exsitu ...
Hydrological Considerations in Designing Roadways: Avoiding Hydroplaning
(2022)
High water levels on lanes poses high risk to the safety on highways. Since drainage
structures are mostly focused on water spread issue at sideways, consequences of the buildup flow on the surface is overlooked . This ...
Growth and characterization of PALE Si-doped AlN on sapphire substrate by MOVPE
(16.01.2022)
teristics of heteroepitaxial Metal-Organic Vapor Phase Epitaxy (MOVPE) grown AlN layers on sapphire substrates. Adjustment of growth kinetics is very important to control the doping. Therefore, pulsed atomic layer epitaxy ...
End to End Invoice Processing Application Based on Key Fields Extraction
(IEEE, 2022)
In this paper, an automatic invoice processing system, which is in great demand among private and public companies, was proposed. The proposed system supports all invoice file types that can be submitted by companies. ...
Systematic optical study of high-x InxGa1-xAs/InP structures for infrared photodetector applications
(10.12.2022)
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 ...
In-situ thermal cleaning of the sapphire substrate and temperature effect on epitaxial AlN
(3.09.2022)
The impact of thermal surface cleaning on epitaxial AlN thin films grown on sapphire is investigated in this study
at various temperatures. The sapphire substrate is cleaned in a hydrogen environment. Structural, optical, ...
The application of different optimization techniques and Artificial Neural Networks (ANN) for coal-consumption forecasting: a case study
(Mineral and Energy Economy Research Institute Polish Academy of Science, 2022)
The demand for energy on a global scale increases day by day. Unlike renewable energy sources, fossil fuels have limited reserves and meet most of the world's energy needs despite their adverse environmental effects. This ...
Optical and nano-mechanical characterization of c-axis oriented AlN film
(19.05.2022)
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. ...
Determination of Optical Properties of MOVPE‑Grown InxGa1‑xAs/ InP Epitaxial Structures by Spectroscopic Ellipsometry
(24.08.2022)
InxGa1−xAs epitaxial layers with different AsH3 flows have been grown on InP substrate with the MOVPE system. It has been found that AsH3 flow variation affects the In concentration of InGaAs/InP structure because the ...