Electronic structure consequences of In/Ga composition variations in self-assembled alloy quantum dots

J Shumway, AJ Williamson, A Zunger, A Passaseo… - Physical Review B, 2001 - APS
Provided that the shape, size, and composition profile of semiconductor-embedded quantum
dots are given, theory is able to accurately calculate the excitonic transitions, including the …

Formation and ordering of epitaxial quantum dots

P Atkinson, OG Schmidt, SP Bremner… - Comptes Rendus …, 2008 - Elsevier
Résumé Les boîtes quantiques uniques présentent un grand intérêt potentiel comme brique
de base des composants pour l'information quantique. Cependant, une des difficultés …

Electronics states of interdiffused quantum dots

O Gunawan, HS Djie, BS Ooi - Physical Review B, 2005 - APS
We have developed a three-dimensional model for electronic states calculation of
interdiffused quantum dots (QDs) with arbitrary shape by solving the BenDaniel-Duke's …

Self-assembled quantum dots with tunable thickness of the wetting layer: role of vertical confinement on interlevel spacing

L Wang, V Křápek, F Ding, F Horton, A Schliwa… - Physical Review B, 2009 - APS
Epitaxial self-assembled quantum dots (QDs) are commonly obtained by the Stranski-
Krastanow (SK) growth mode, in which QDs form on top of a thin two-dimensional (2D) …

Tuning of -factor in self-assembled In(Ga)As quantum dots through strain engineering

T Nakaoka, T Saito, J Tatebayashi, S Hirose, T Usuki… - Physical Review B, 2005 - APS
We have investigated the effect of strain on the g-factors of self-assembled In (Ga) As dots by
single-dot spectroscopy and an eight-band effective mass calculation taking into account the …

Role of segregation in InAs/GaAs quantum dot structures capped with a GaAsSb strain-reduction layer

V Haxha, I Drouzas, JM Ulloa, M Bozkurt, PM Koenraad… - Physical Review B, 2009 - APS
We report a combined experimental and theoretical analysis of Sb and In segregation during
the epitaxial growth of InAs self-assembled quantum dot structures covered with a GaSbAs …

Presentation and experimental validation of a model for the effect of thermal annealing on the photoluminescence of self-assembled InAs/GaAs quantum dots

M Srujan, K Ghosh, S Sengupta… - Journal of Applied …, 2010 - pubs.aip.org
We present a model for the effect of thermal annealing on a single-layer InAs/GaAs quantum
dot (QD) heterostructure and study the corresponding variation in full photoluminescence …

Tailored quantum dots for entangled photon pair creation

A Greilich, M Schwab, T Berstermann, T Auer, R Oulton… - Physical Review B, 2006 - APS
We compare the asymmetry-induced exchange splitting δ 1 of the bright-exciton ground-
state doublet in self-assembled (In, Ga) As∕ GaAs quantum dots, determined by Faraday …

Time-resolved studies of annealed InAs/GaAs self-assembled quantum dots

S Malik, EC Le Ru, D Childs, R Murray - Physical Review B, 2001 - APS
We have investigated the carrier dynamics in annealed quantum dots where the energy-
level separation of the optical transitions can be tuned between 68 and 19 meV …

InAs/GaAs quantum dot intermixing induced by proton implantation

Y Ji, W Lu, G Chen, X Chen, Q Wang - Journal of applied physics, 2003 - pubs.aip.org
We have investigated the intermixing effect of multilayer self-assembled InAs/GaAs quantum
dots on photoluminescence (PL) spectra. Proton implantation combined with rapid thermal …