Band structures and optical properties of InGaNAs quantum wells
This thesis presents theoretical studies of electronic band structures and optical properties for compressively strained InGaAsN/GaAs quantum well (QW). We have used a realistic 10-band k.p model for the detailed calculation of band structures and have even studied the QW structure with tensile GaAs...
Saved in:
Main Author: | |
---|---|
Other Authors: | |
Format: | Theses and Dissertations |
Published: |
2008
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/3436 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
id |
sg-ntu-dr.10356-3436 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-34362023-07-04T17:29:09Z Band structures and optical properties of InGaNAs quantum wells Ng, Say Tyam Fan, Weijun School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics This thesis presents theoretical studies of electronic band structures and optical properties for compressively strained InGaAsN/GaAs quantum well (QW). We have used a realistic 10-band k.p model for the detailed calculation of band structures and have even studied the QW structure with tensile GaAs/GaAsP/GaAs compounded barrier. Strained conduction band offset ratio (Qc) of InGaAsN/GaAs was proposed. Together with band gap energy (EG) and electron effective mass (m*) based on band-anticrossing (BAC) model, we are able to predict quantum well transition energies that is reasonably close to the reported experimental values. Model-dependent prediction of transition energy (Eeh) and energy separation of conduction subbands were also conducted using additional 8-band and 6-band k.p models, which neglect nitrogen related energy level (EN) and conduction-valence band interaction, respectively. DOCTOR OF PHILOSOPHY (EEE) 2008-09-17T09:30:10Z 2008-09-17T09:30:10Z 2007 2007 Thesis Ng, S. T. (2007). Band structures and optical properties of InGaNAs quantum wells. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/3436 10.32657/10356/3436 Nanyang Technological University application/pdf |
institution |
Nanyang Technological University |
building |
NTU Library |
continent |
Asia |
country |
Singapore Singapore |
content_provider |
NTU Library |
collection |
DR-NTU |
topic |
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
spellingShingle |
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Ng, Say Tyam Band structures and optical properties of InGaNAs quantum wells |
description |
This thesis presents theoretical studies of electronic band structures and optical properties for compressively strained InGaAsN/GaAs quantum well (QW). We have used a realistic 10-band k.p model for the detailed calculation of band structures and have even studied the QW structure with tensile GaAs/GaAsP/GaAs compounded barrier. Strained conduction band offset ratio (Qc) of InGaAsN/GaAs was proposed. Together with band gap energy (EG) and electron effective mass (m*) based on band-anticrossing (BAC) model, we are able to predict quantum well transition energies that is reasonably close to the reported experimental values. Model-dependent prediction of transition energy (Eeh) and energy separation of conduction subbands were also conducted using additional 8-band and 6-band k.p models, which neglect nitrogen related energy level (EN) and conduction-valence band interaction, respectively. |
author2 |
Fan, Weijun |
author_facet |
Fan, Weijun Ng, Say Tyam |
format |
Theses and Dissertations |
author |
Ng, Say Tyam |
author_sort |
Ng, Say Tyam |
title |
Band structures and optical properties of InGaNAs quantum wells |
title_short |
Band structures and optical properties of InGaNAs quantum wells |
title_full |
Band structures and optical properties of InGaNAs quantum wells |
title_fullStr |
Band structures and optical properties of InGaNAs quantum wells |
title_full_unstemmed |
Band structures and optical properties of InGaNAs quantum wells |
title_sort |
band structures and optical properties of inganas quantum wells |
publishDate |
2008 |
url |
https://hdl.handle.net/10356/3436 |
_version_ |
1772826081097678848 |