Browsing Makale Koleksiyonu by Publisher "ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD"
Now showing items 1-20 of 45
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Anti-inflammatory and antibacterial evaluation of Thymus sipyleus Boiss. subsp sipyleus var. sipyleus essential oil against rhinosinusitis pathogens
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2018)Thymus sipyleus Boiss. subsp. sipyleus var. sipyleus of the Lamiaceae, locally known as thyme scented lemon, which is an endemic taxon collected from Sivas in Anatolia, was investigated in this study due to its folk medicine ... -
Binding energies of donor impurities in modulation-doped GaAs/AlxGa1-xAs double quantum wells under an electric field
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2009)In this study, we have investigated theoretically the binding energies of shallow donor impurities in modulation-doped GaAs/Al0.33Ga0.67 As double quantum wells (DQWs) under an electric field which is applied along the ... -
The contribution of AsH3: Pre-flow and V/III ratio effects on heteroepitaxially grown GaAs/Ge
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2019)We report the effects of AsH3 (arsine) on morphological, structural, optical and crystalline quality of MOVPE (metal organic vapor phase epitaxy) grown GaAs/Ge heterostructures. AsH3 pre-flow supplied on Ge substrate to ... -
Determination of optimum operating conditions for industrial dye wastewater treatment using adaptive heuristic criticism pH control
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2007)For a pilot-scale application, pH control in the treatment of highly contaminated dye industrial wastewater containing metallic compounds as the main pollutants has been investigated with a method using adaptive heuristic ... -
The diamagnetic susceptibilities of donors in quantum wells with anisotropic effective mass
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2009)The diamagnetic susceptibility of a hydrogenic donor placed in Si, Ge and GaAs quantum wells with infinite confinement potential which have different effective mass anisotropy parameters (gamma = m(perpendicular to)L/m(parallel ... -
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 ... -
Donor impurity states and related optical responses in triangular quantum dots under applied electric field
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2014)The linear and nonlinear coefficients for the optical absorption and relative refractive index change associated with transitions between donor impurity states in a two-dimensional quantum dot of triangular shape under ... -
Effect of applied electric field on the nonlinear optical properties of modulation-doped GaAs/AlxGa1-x As double quantum well
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2019)In the present study, the effects of varying doping concentration and applied electric field on the intersubband-related optical absorption and relative refractive index change coefficients in modulation-doped GaAs/AlxGa1-x ... -
The effect of hydrostatic pressure on subband structure and optical transitions in modulation-doped quantum well
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)Within the framework of effective-mass approximation, we have calculated theoretically the effects of hydrostatic pressure and doping concentration on subband structure and optical transitions in modulation-doped ... -
Effect of magnetic fields on the linear and nonlinear intersubband optical absorption coefficients and refractive index changes in square and graded quantum wells
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010)In this study, both the intersubband optical absorption coefficients and the refractive index changes as dependent on the magnetic field are calculated in square and graded quantum wells. Our results show that the position ... -
The effect of nitrogen on the diamagnetic susceptibility of a donor in GaxIn1-xNyAs1-y/GaAs quantum well under the magnetic field
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010)The binding energy and diamagnetic susceptibility of a hydrogenic donor in a GaxIn1-xNyAs1-y/GaAs quantum well has investigated in the presence of the magnetic field by using a trial wave function in the framework of the ... -
Effect of the intense laser field on the valance band for Ga1-xAlxAs/GaAs heterostructure
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2009)The energy levels of holes in symmetric single quantum well under the laser field are theoretically calculated within the framework of the effective mass approximation. Results obtained show that the potential profile and ... -
Effects of an in-plane magnetic field on the energy dispersion, spin texturing and conductance of double quantum wires
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2016)We investigate the electronic structure, spin and transport properties of double quantum wires formed by a symmetric, double quartic-well potential subjected to an in-plane magnetic field by taking into account Rashba and ... -
Effects of applied electromagnetic fields on the optical transitions in a V-shaped quantum well
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2013)In this study, the interband optical transitions and the binding energy of an exciton in a GaAs/Ga1-xAlxAs V-shaped quantum well (VQW) under the electric and magnetic fields are calculated. The calculations were performed ... -
The effects of temperature and hydrostatic pressure on the photoionization cross-section and binding energy of impurities in quantum-well wires
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2010)Using a variational approach, we have calculated the donor impurity related photoionization cross-section and impurity binding in GaAs/GaAlAs quantum-well wires under different temperature and hydrostatic pressure conditions. ... -
Electrical performance of InAs/AlSb/GaSb superlattice photodetectors
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2016)Temperature dependence of dark current measurements is an efficient way to verify the quality of an infrared detector. Low dark current density values are needed for high performance detector applications. Identification ... -
Hydrogenic impurity states in zinc-blende InxGa1-xN/GaN in cylindrical quantum well wires
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 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 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 ... -
The hydrostatic pressure and temperature effects on hydrogenic impurity binding energies in lattice matched InP/In0.53Ga0.47As/InP square quantum well
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2017)The on-center shallow-donor impurity binding energy in lattice matched InP/In0.53Ga0.47As square quantum well structure have been theoretically investigated using effective mass and variational techniques. The effects of ... -
The hydrostatic pressure and temperature effects on the binding energy of magnetoexcitons in cylindrical quantum well wires
(ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2013)We have calculated the binding energy for the ground state of a heavy-hole exciton in GaAs/Ga0.7Al0.3As cylindrical quantum well wires (CQWWs) under the action of a hydrostatic pressure, temperature and magnetic field. The ...