Droplet epitaxy for advanced optoelectronic materials and devices
Droplet epitaxy was proposed to fabricate quantum dots in the early 1990s. Even though
many research efforts have been devoted to droplet epitaxy since then, it is only until …
many research efforts have been devoted to droplet epitaxy since then, it is only until …
Fabrication of multiple concentric nanoring structures
We present the fabrication of GaAs/AlGaAs Multiple (from three to five) concentric nanoring
structures by an innovative growth method based on droplet epitaxy and characterized by …
structures by an innovative growth method based on droplet epitaxy and characterized by …
Kinetic model of local droplet etching
C Heyn - Physical Review B—Condensed Matter and Materials …, 2011 - APS
The self-organized in situ drilling of nanoholes into semiconductor surfaces by using liquid
metallic droplets during conventional molecular beam epitaxy represents a new degree of …
metallic droplets during conventional molecular beam epitaxy represents a new degree of …
Nanohole etching in AlGaSb with gallium droplets
We demonstrate nanohole formation in AlGaSb by Ga droplet etching within a temperature
range from 270 to 500° C, allowing a wide range of tunability of the nanohole density. By …
range from 270 to 500° C, allowing a wide range of tunability of the nanohole density. By …
[HTML][HTML] Highly uniform GaSb quantum dots with indirect–direct bandgap crossover at telecom range
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 …
dots (QDs) embedded in a single-crystalline AlGaSb matrix by filling droplet-etched …
Dot-Size Dependent Excitons in Droplet-Etched Cone-Shell GaAs Quantum Dots
C Heyn, A Gräfenstein, G Pirard, L Ranasinghe… - Nanomaterials, 2022 - mdpi.com
Strain-free GaAs quantum dots (QDs) are fabricated by filling droplet-etched nanoholes in
AlGaAs. Using a template of nominally identical nanoholes, the QD size is precisely …
AlGaAs. Using a template of nominally identical nanoholes, the QD size is precisely …
Droplet epitaxy of nanostructures
The droplet epitaxy is an innovative growth method, performed in the molecular beam
epitaxy environment, for the fabrication of quantum nanostructures with highly designable …
epitaxy environment, for the fabrication of quantum nanostructures with highly designable …
Fundamental role of arsenic flux in nanohole formation by Ga droplet etching on GaAs (001)
D Fuster, Y González, L González - Nanoscale research letters, 2014 - Springer
Nanoholes with a depth in the range of tens of nanometers can be formed on GaAs (001)
surfaces at a temperature of 500° C by local etching after Ga droplet formation. In this work …
surfaces at a temperature of 500° C by local etching after Ga droplet formation. In this work …
Scaling of the structural characteristics of nanoholes created by local droplet etching
C Heyn, S Schnüll, W Hansen - Journal of Applied Physics, 2014 - pubs.aip.org
We study the tuneability of nanoholes created by local droplet etching of AlGaAs surfaces
with Al droplets at varied coverage θ of the deposited droplet material and process …
with Al droplets at varied coverage θ of the deposited droplet material and process …
Formation of lateral low density In (Ga) As quantum dot pairs in GaAs nanoholes
In this work we present a growth procedure to form lateral In (Ga) As quantum dot pairs by
using a low density, 2× 108 cm− 2, GaAs nanohole template previously formed in situ by …
using a low density, 2× 108 cm− 2, GaAs nanohole template previously formed in situ by …