[HTML][HTML] Highly uniform GaSb quantum dots with indirect–direct bandgap crossover at telecom range

A Chellu, J Hilska, JP Penttinen, T Hakkarainen - APL Materials, 2021 - pubs.aip.org
We demonstrate a new quantum-confined semiconductor material based on GaSb quantum
dots (QDs) embedded in a single-crystalline AlGaSb matrix by filling droplet-etched …

Unveiling the electronic structure of GaSb/AlGaSb quantum dots emitting in the third telecom window

L Leguay, A Chellu, J Hilska, E Luna… - Materials for …, 2024 - iopscience.iop.org
Epitaxially-grown semiconductor quantum dots (QDs) provide an attractive platform for the
development of deterministic sources of high-quality quantum states of light. Such non …

Long-wavelength luminescence from GaSb quantum dots grown on GaAs substrates

M Kudo, T Mishima, S Iwamoto, T Nakaoka… - Physica E: Low …, 2004 - Elsevier
Self-assembled GaSb quantum dots (QDs) with a photoluminescence wavelength longer
than 1.3 μm were successfully grown by suppressing the replacement of As and Sb on the …

Optical spectroscopy of self-assembled type II GaSb/GaAs quantum dot structures grown by molecular beam epitaxy

RA Hogg, K Suzuki, K Tachibana, L Finger… - Applied physics …, 1998 - pubs.aip.org
We report an optical spectroscopic study of GaSb/GaAs quantum dots (QDs) formed by the
Stranski–Krastanow growth mode using molecular beam epitaxy. We identify the QD …

Structural and optical properties of type II GaSb/GaAs self-assembled quantum dots grown by molecular beam epitaxy

K Suzuki, RA Hogg, Y Arakawa - Journal of applied physics, 1999 - pubs.aip.org
We report structural and optical properties of GaSb/GaAs self-assembled quantum dots
(QDs) grown by molecular beam epitaxy. The QDs, with nanometer-scale dimensions, were …

GaSb/GaAs type-II quantum dots grown by droplet epitaxy

B Liang, A Lin, N Pavarelli, C Reyner… - …, 2009 - iopscience.iop.org
We demonstrate the formation of GaSb quantum dots (QDs) on a GaAs (001) substrate by
droplet epitaxy using molecular beam epitaxy. The high crystal quality and bimodal size …

Strain‐Free GaSb Quantum Dots as Single‐Photon Sources in the Telecom S‐Band

J Michl, G Peniakov, A Pfenning… - Advanced Quantum …, 2023 - Wiley Online Library
Generating single photons in the telecommunication wavelength range from semiconductor
quantum dots (QDs) and interfacing them with spins of electrons or holes is of high interest …

An investigation of exciton behavior in type-II self-assembled GaSb/GaAs quantum dots

F Qiu, W Qiu, Y Li, X Wang, Y Zhang, X Zhou… - …, 2015 - iopscience.iop.org
We report the investigation of exciton dynamics in type-II self-assembled GaSb/GaAs
quantum dots. The GaSb/GaAs quantum dots (QDs) were grown using a modified liquid …

GaSb and InSb quantum nanostructures: morphologies and optical properties

T Poempool, S Kiravittaya, S Sopitpan, S Thainoi… - MRS …, 2016 - cambridge.org
GaSb/GaAs and InSb/GaAs material systems can create type-II quantum nanostructures
which provide interesting electronic and optical properties such as having long carrier life …

Room temperature 1.3 μm emission from self-assembled GaSb/GaAs quantum dots

I Farrer, MJ Murphy, DA Ritchie, AJ Shields - Journal of crystal growth, 2003 - Elsevier
We describe the growth of GaSb/GaAs self-assembled quantum dots by MBE and also their
incorporation into modulation-doped quantum well devices. The importance of the use of a …