Results 171 to 180 of about 1,511 (211)

Recent developments in droplet epitaxy

AIP Conference Proceedings, 2014
The droplet epitaxy allows for self-assembly of lattice-matched GaAs quantum dots (QDs) with high quality and high uniformity. In this article, we show our efforts to realize the GaAs QDs with excellent optical properties. After the optimization of the several growth processes, we achieved current-injection lasing in the GaAs QDs.
Takaaki Mano, Masafumi Jo, Takashi Kuroda, Marco Abbarchi, Takeshi Noda, Kazuaki Sakoda   +5 more
openaire   +1 more source

InAs nanostructures grown by droplet epitaxy directly on InP(001) substrates [PDF]

Journal of Crystal Growth, 2016
This work deals with the development of growth processes by droplet epitaxy to obtain InAs quantum dots directly on InP (001) surfaces (without any InGaAs or InAlAs intermediate layer).
D Fuster, Kamal Abderrafi, B Alen
exaly   +2 more sources

Single cell epitaxy by acoustic picolitre droplets

Lab on a Chip, 2007
The capability to encapsulate single to few cells with micrometre precision, high viability, and controlled directionality via a nozzleless ejection technology using a gentle acoustic field would have great impact on tissue engineering, high throughput screening, and clinical diagnostics.
Utkan, Demirci, Grace, Montesano
openaire   +2 more sources

Droplet Epitaxy of Nanostructures

2018
The droplet epitaxy is an innovative growth method, performed in the molecular beam epitaxy environment, for the fabrication of quantum nanostructures with highly designable shapes and complex morphologies. Droplet epitaxy is based on the split of the deposition of III and V column elements at controlled temperatures and fluxes.
Sanguinetti S., Bietti S., Koguchi N.
openaire   +1 more source

Coupled quantum dot–ring structures by droplet epitaxy

Nanotechnology, 2011
The fabrication, by pure self-assembly, of GaAs/AlGaAs dot-ring quantum nanostructures is presented. The growth is performed via droplet epitaxy, which allows for the fine control, through As flux and substrate temperature, of the crystallization kinetics of nanometer scale metallic Ga reservoirs deposited on the surface.
SOMASCHINI, CLAUDIO, BIETTI, SERGIO, Koguchi, N, SANGUINETTI, STEFANO   +3 more
openaire   +3 more sources

Design of Nanostructure Complexes by Droplet Epitaxy

Crystal Growth & Design, 2009
We demonstrate a number of unseen self-assembled nanostructure complexes fabricated on various GaAs surface indexes by droplet epitaxy. Even under identical growth conditions, the configuration of nanostructure complexes is distinctive on each surface.
Jihoon H. Lee, Zhiming M. Wang, Ziad Y. AbuWaar, Gregory J. Salamo   +3 more
openaire   +1 more source

Semiconductor quantum nanostructures by droplet epitaxy

SPIE Proceedings, 2012
Droplet Epitaxy is a variant of molecular beam epitaxy for the fabrication of quantum nanostructures with highly designable shapes and complex morphologies. With Droplet Epitaxy it is possible to combine different quantum structures, namely quantum dots, quantum rings and quantum disks into a single unit, thus allowing an unprecedented control over ...
SANGUINETTI, STEFANO, BIETTI, SERGIO, SOMASCHINI, CLAUDIO   +2 more
openaire   +1 more source

Origin of nanohole formation by etching based on droplet epitaxy

Nanoscale, 2014
Creating and manipulating materials at the nanoscale with controllable size, shape and nucleation site is an important task to meet the urgent demands for quantum structures with designed properties. In the last ten years, droplet epitaxy has been emerging as a versatile fabrication method for various complex nanostructures, such as quantum dots ...
Xinlei, Li, Jiang, Wu, Zhiming M, Wang, Baolai, Liang, Jihoon, Lee, Eun-Soo, Kim, Gregory J, Salamo   +6 more
openaire   +2 more sources

Growth of topological insulator nanoparticles by droplet epitaxy

Low-Dimensional Materials and Devices 2021, 2021
Topological insulators (TIs) are a class of materials which exhibit unique electronic states delocalized on the outer surface of the material. Due to the strong spin-orbit coupling in TIs, these states are spin-polarized and robust against scattering. The robust nature of these states could present a potential solution to the problem of decoherence in ...
Sivakumar Vishnuvardhan Mambakkam, Stephanie Law   +1 more
openaire   +1 more source

On Droplet Epitaxy of InGaP Nanostructures

Materials Science Forum
Semiconductor nanostructures are referred to semiconductor heterostructures confined in one, two, or all three dimensions, which are known as quantum wells, quantum wires, and quantum dots (QDs), respectively. QDs are semiconductor nanocrystals with significant potential for high-performance photonic and electronic devices based on III–V semiconductor ...
Tinatin Laperashvili, Orest Kvitsiani
openaire   +1 more source