Optical investigation of InGaAs-capped InAs quantum dots: Impact of the strain-driven phase separation and dependence upon post-growth thermal treatment

B Ilahi, L Sfaxi, H Maaref - Journal of luminescence, 2007 - Elsevier
Strain-driven phase separation of InAs self-assembled quantum dot's InGaAs heterocapping
alloy is investigated by temperature-dependent photoluminescence (PL) spectroscopy and …

Tuning optical properties of high In content InGaAs/GaAs capped InAs quantum dots by post growth rapid thermal annealing

B Ilahi, L Sfaxi, G Bremond, H Maaref - Materials Science and Engineering …, 2006 - Elsevier
The effect of rapid thermal annealing on InAs quantum dots (QDs) capped with In0. 4Ga0.
6As/GaAs layer has been investigated by photoluminescence (PL). An unusual red shift of …

Postgrowth intermixing of strain engineered InAs/GaAs quantum dots

O Nasr, MHH Alouane, B Ilahi, B Salem, L Sfaxi… - Journal of alloys and …, 2014 - Elsevier
This paper reports on the evolution of InAs/GaAs quantum dots'(QDs) intermixing process
depending on the QD position with respect to the InGaAs strain reducing layer. The …

The effect of high-In content capping layers on low-density bimodal-sized InAs quantum dots

G Trevisi, I Suárez, L Seravalli, D Rivas… - Journal of applied …, 2013 - pubs.aip.org
The structural and morphological features of bimodal-sized InAs/(In) GaAs quantum dots
with density in the low 10 9 cm− 2 range were analyzed with transmission electron …

Thermally activated inter-dots carriers' transfer in InAs QDs with InGaAs underlying layer: Origin and dependence on the post-growth intermixing

B Ilahi, O Nasr, B Paquette, MHH Alouane… - Journal of Alloys and …, 2016 - Elsevier
This paper reports on experimental and theoretical investigation of atyical temperature-
dependent photoluminescence properties of InAs quantum dots in close proximity to InGaAs …

Tailoring the optical properties of InAs/GaAs quantum dots by means of GaAsSb, InGaAs and InGaAsSb strain reducing layers

A Salhi, S Alshaibani, B Ilahi, M Alhamdan… - Journal of Alloys and …, 2017 - Elsevier
Abstract Self-organized InAs QDs have been grown by Molecular Beam Epitaxy with
different strain reducing layers (SRL) having nearly similar lattice mismatches to GaAs. The …

Carrier dynamics of strain-engineered InAs quantum dots with (In) GaAs surrounding material

O Nasr, N Chauvin, MHH Alouane, H Maaref… - Journal of …, 2017 - iopscience.iop.org
The present study reports on the optical properties of epitaxially grown InAs quantum dots
(QDs) inserted within an InGaAs strain-reducing layer (SRL). The critical energy states in …

Thermal stability of the peak emission wavelength in multilayer InAs/GaAs QDs capped with a combination capping of InAlGaAs and GaAs

S Adhikary, N Halder… - Journal of nanoscience …, 2011 - ingentaconnect.com
The effect of rapid thermal annealing (RTA) on the optical properties of a 10 layer stacked
InAs/GaAs quantum dot (QD) heterostructure where the QDs are overgrown with a …

GaAsSb-capped InAs quantum dots: from enlarged quantum dot height to alloy fluctuations

JM Ulloa, R Gargallo-Caballero, M Bozkurt… - Physical Review B …, 2010 - APS
The Sb-induced changes in the optical properties of GaAsSb-capped InAs/GaAs quantum
dots (QDs) are shown to be strongly correlated with structural changes. The observed …

Capping InAs quantum dots with an InGaAsSb strain-reducing layer to improve optical properties and dot-size uniformity

WS Liu, CM Chang - Thin Solid Films, 2014 - Elsevier
The superior operation characteristics of quantum dot (QD) lasers with excited-state (ES)
emission, namely high saturation gain and modulation bandwidth, are advantageous for …