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Now showing items 11-20 of 24
Hydrogenic impurity states in zinc-blende InxGa1-xN/GaN in cylindrical quantum well wires under hydrostatic pressure
(ELSEVIER SCIENCE BV, 2011)
Within the framework of effective-mass approximation, the binding energy of a hydrogenic donor impurity in zinc-blende (ZB) InxGa1-xN/GaN cylindrical quantum well wires (CQWWs) is investigated using variational procedures. ...
The effect of barrier width on the electronic properties of double GaAlAs/GaAs and GaInAs/GaAs quantum wells
(ELSEVIER SCIENCE BV, 2018)
In this study, the electronic properties of symmetric and asymmetric double Ga1-xAlxAs/GaAs and Ga(1-x)ln(x)As/GaAs quantum wells have been investigated depending on the barrier width. Using the effective mass approach, ...
Distributed contact flip chip InGaN/GaN blue LED; comparison with conventional LEDs
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2019)
This paper presents high performance, GaN/InGaN-based light emitting diodes (LEDs) in three different device configurations, namely Top Emitting (TE) LED, conventional Flip Chip (FC) and Distributed Contact (DC) FC. Series ...
The effects of pressure and barrier height on donor binding energy in GaAs/Ga1-xAlxAs cylindrical quantum well wires
(ELSEVIER SCIENCE BV, 2010)
The ground state binding energy of axial hydrogenic impurity in GaAs/Ga1-xAlxAs cylindrical quantum well wires (CQWWs) are investigated as a function of the barrier height and the radius of the wire under hydrostatic ...
Antitumor effects of Origanum acutidens extracts on human breast cancer
(IMPRIMATUR PUBLICATIONS, 2013)
Purpose: There has been a long-standing interest in the identification of medicinal plants and derived natural products for developing anticancer agents. This work aimed at investigating the antiprolipherative properties ...
Comprehensive structural and optical characterization of AlAs/GaAs distributed Bragg reflector
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2019)
30-pair AlAs/GaAs distributed Bragg reflector (DBR), which has 1030 nm center reflectivity, is studied extensively by means of High Resolution X-ray Diffraction (HR-XRD) and reflectivity measurements. Theta/2-Theta ...
Microstructural Evolution of MOVPE Grown GaN by the Carrier Gas
(PLEIADES PUBLISHING INC, 2018)
We report the effect of total carrier gas flow of GaN during both GaN nucleation layer and high temperature GaN growth steps on structural, optical, electrical and morphological properties. The formation of dislocations ...
The hydrostatic pressure and temperature effects on hydrogenic impurity binding energies in GaAs/InxGa1-xAs/GaAs square quantum well
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2016)
We have calculated the ground state binding energy using variational methods and the effective mass approximation for the hydrogenic impurity in square quantum well structure made up of GaAs/InGaAs/GaAs epilayers under the ...
Modeling of reflectance properties of ZnO film using artificial neural networks
(NATL INST OPTOELECTRONICS, 2015)
A ZnO thin film was prepared on a p-Si (100) substrate by using a pulsed filtered cathodic vacuum arc deposition system (PFCVAD). Specular reflectance, a nondestructive technique, can be used to measure thickness, refractive ...
The investigation of quantum efficiency constituents of InAs/AlSb/GaSb based N structure type-II SL photodetectors with InAlAs interface
(IOP PUBLISHING LTD, 2018)
We report on the optical properties of InAs/AlSb/GaSb based Type-II superlattice N-structure with p on n configuration. The detector structure is designed to operate in the mid wavelength infrared range with 50% cut-off ...