Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Electronic structure of modulation-doped heterostructures: electric field effects
Download
index.pdf
Date
1998-01-01
Author
Ilaiwi, KF
El-Kawni, MI
Tomak, Mehmet
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
160
views
0
downloads
Cite This
Self-consistent energy levels of electrons in modulation-doped GaAs/Ga1-xAlxAs heterostructures are presented and their dependence on various device parameters are examined. The results of the calculation of the electric field effects on the shape of the confinement potential, the electron concentration and the shape of the wavefunction are presented. (C) 1998 Academic Press.
Subject Keywords
Electrical and Electronic Engineering
,
General Materials Science
,
Condensed Matter Physics
URI
https://hdl.handle.net/11511/42789
Journal
SUPERLATTICES AND MICROSTRUCTURES
DOI
https://doi.org/10.1006/spmi.1996.0443
Collections
Department of Physics, Article
Suggestions
OpenMETU
Core
Direct growth of type II InAs/GaSb superlattice MWIR photodetector on GaAs substrate
SERİNCAN, UĞUR; Arikan, Bulent; Senel, Onur (Elsevier BV, 2018-08-01)
We report on the direct growth and characterization of type-II InAs/GaSb superlattice (T2SL) MWIR photodetector structure grown on a GaAs substrate by molecular beam epitaxy. The designed photodetector structure contains 140 period of 8.0 ML InAs/8.3 ML GaSb p-i-n SL structure with a 50% cutoff wavelength of 3.78 pm. We achieved a peak specific detectivity (D*) and differential resistance area product at zero bias (R(0)A) of 1.3 x 10(12)cm Hz(1/2) W-1 and 10(4) Omega cm(2) at 80 K, respectively. The obtaine...
Screening effect on the binding energies of shallow donors, acceptors and excitons in finite-barrier quantum wells
Akbas, H; Aktas, S; Okan, SE; Ulas, M; Tomak, Mehmet (Elsevier BV, 1998-01-01)
The conduction and valence subband energies in the presence of an electric field are calculated using the fifth-order Runge-Kutta method. The binding energies of shallow donors, accepters and excitons in finite-barrier GaAs/Ga1-xAlx As quantum wells are then obtained variationally in the presence of a magnetic field. The effects of a spatially dependent screening function epsilon(r) On the calculation of binding energies are specifically investigated. The use of epsilon(r) in comparison with the use of a co...
The electronic structure of a quantum well under an applied electric field
Sari, H; Ergun, Y; Sokmen, I; Tomak, Mehmet (Elsevier BV, 1996-01-01)
The effects of an applied electric field on quantum well subband energies are calculated variationally within the effective mass approximation for model potential profiles. The concept of a quasi-bound state is examined critically. For higher electric field values it is shown that the quasi-bound state approximation for the ground and first excited state of the electron, and for the ground state of the hole is valid. (C) 1996 Academic Press Limited
Donor binding energies in GaAs quantum wells considering the band nonparabolicity effects and the wavefunction elongation
Aktas, S; Okan, SE; Erdogan, I; Akbas, H; Tomak, Mehmet (Elsevier BV, 2000-09-01)
The donor binding energies in finite GaAs/GaxAl1-As-x quantum wells have been calculated by considering the confinement of electrons, which increases as the well width increases. The variational solutions have been improved by using a two-parameter trial wavefunction, and by including the conduction band nonparabolicity. It is shown that the method used gives results in agreement with those obtained in the experiments on the effective mass and the donor binding energy, both of which are strongly dependent o...
Mutual coupling of printed elements on a cylindrically layered structure using closed-form Green's functions
Acar, R. C.; Dural, G. (EMW Publishing, 2008-01-01)
A hybrid method to calculate mutual coupling of electric or magnetic current elements on a cylindrically layered structure using closed-form Green's functions is presented. When rho = rho' and phi is not very close to phi', closed-form Green's functions are employed in the calculation of MoM matrix entries. When both rho = rho' and phi = phi', series representation of the spectral domain Green's functions do not converge, therefore closed-form Green's functions can not be employed. In that case MoM matrix e...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
K. Ilaiwi, M. El-Kawni, and M. Tomak, “Electronic structure of modulation-doped heterostructures: electric field effects,”
SUPERLATTICES AND MICROSTRUCTURES
, pp. 61–67, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42789.