[HTML][HTML] Atomic-scale characterization of droplet epitaxy quantum dots

RSR Gajjela, PM Koenraad - Nanomaterials, 2021 - mdpi.com
The fundamental understanding of quantum dot (QD) growth mechanism is essential to
improve QD based optoelectronic devices. The size, shape, composition, and density of the …

Compositional map** of semiconductor quantum dots and rings

G Biasiol, S Heun - Physics Reports, 2011 - Elsevier
In this article we review the extensive experimental work on the compositional map** of
semiconductor quantum dots and rings. After a brief introduction of the various experimental …

The influence of the electric and magnetic fields on donor impurity electronic states and optical absorption coefficients in a core/shell GaAs/AlGaAs ellipsoidal …

A Ed-Dahmouny, R Arraoui, M Jaouane… - … Physical Journal Plus, 2023 - epjplus.epj.org
The lowest five energies levels (ELs) and optical absorption coefficient (OAC) of confined
donor in a core/shell ellipsoidal quantum dot were theoretically investigated under the …

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 …

Culling a self-assembled quantum dot as a single-photon source using X-ray microscopy

AB Dey, MK Sanyal, A Schropp, S Achilles, TF Keller… - ACS …, 2023 - ACS Publications
Epitaxially grown self-assembled semiconductor quantum dots (QDs) with atom-like optical
properties have emerged as the best choice for single-photon sources required for the …

Excitons in InGaAs quantum dots without electron wetting layer states

MC Löbl, S Scholz, I Söllner, J Ritzmann… - Communications …, 2019 - nature.com
Abstract The Stranski–Krastanov growth-mode facilitates the self-assembly of quantum dots
(QDs) by using lattice-mismatched semiconductors, for instance, InAs and GaAs. These QDs …

Structural and compositional analysis of (InGa)(AsSb)/GaAs/GaP Stranski–Krastanov quantum dots

RSR Gajjela, AL Hendriks, JO Douglas… - Light: Science & …, 2021 - nature.com
We investigated metal-organic vapor phase epitaxy grown (InGa)(AsSb)/GaAs/GaP Stranski–
Krastanov quantum dots (QDs) with potential applications in QD-Flash memories by cross …

Evaluation of different cap** strategies in the InAs/GaAs QD system: Composition, size and QD density features

D González, S Flores, N Ruiz-Marín, DF Reyes… - Applied Surface …, 2021 - Elsevier
In this work, two different strategies to preserve InAs/GaAs QDs against decomposition
during the cap** process have been compared structurally and optically. They are based …

Biexciton, negative and positive trions in strongly oblate ellipsoidal quantum dot

DB Hayrapetyan, YY Bleyan, DA Baghdasaryan… - Physica E: Low …, 2019 - Elsevier
The biexciton, negative and positive trion states in strongly oblate ellipsoidal quantum dot
are investigated in the framework of variational method and Heisenberg's uncertainty …

Effects of pressure, temperature, and electric field on linear and nonlinear optical properties of InxGa1-xAs/GaAs strained quantum dots under indium segregation and …

N Benzerroug, D Makhlouf, M Choubani - Physica B: Condensed Matter, 2023 - Elsevier
Linear and nonlinear optical properties of In x Ga 1-x As/GaAs lens-shaped quantum dots
were investigated, taking into account simultaneous effects of indium segregation, In/Ga …