We present the fabrication and discuss the growth dynamics of two classes of GaAs quantum nanostructures fabricated by droplet epitaxy, namely, double rings and coupled ring-disks. Their morphological differences has been investigated and found to be originated by the kinetic of the changes in the surface reconstruction around the initially formed Ga droplets during the arsenization step. The control of surface reconstruction dynamics thus permits a fine tuning of the actual nanostructure shape at the nanoscale, based on pure self-assembling techniques. © 2010 American Institute of Physics.

Somaschini, C., Bietti, S., Koguchi, N., Sanguinetti, S. (2010). Shape control via surface reconstruction kinetics of droplet epitaxy nanostructures. APPLIED PHYSICS LETTERS, 97(20) [10.1063/1.3511283].

Shape control via surface reconstruction kinetics of droplet epitaxy nanostructures

SOMASCHINI, CLAUDIO;BIETTI, SERGIO;SANGUINETTI, STEFANO
2010

Abstract

We present the fabrication and discuss the growth dynamics of two classes of GaAs quantum nanostructures fabricated by droplet epitaxy, namely, double rings and coupled ring-disks. Their morphological differences has been investigated and found to be originated by the kinetic of the changes in the surface reconstruction around the initially formed Ga droplets during the arsenization step. The control of surface reconstruction dynamics thus permits a fine tuning of the actual nanostructure shape at the nanoscale, based on pure self-assembling techniques. © 2010 American Institute of Physics.
Articolo in rivista - Articolo scientifico
Drop formation; Epitaxial growth; Gallium; Nanostructures; Double ring; Droplet epitaxy; Fine tuning; GaAs; Growth dynamics; Nano scale; Quantum nanostructures; Self-assembling; Shape control; Surface reconstruction;
English
2010
97
20
203109
none
Somaschini, C., Bietti, S., Koguchi, N., Sanguinetti, S. (2010). Shape control via surface reconstruction kinetics of droplet epitaxy nanostructures. APPLIED PHYSICS LETTERS, 97(20) [10.1063/1.3511283].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/23666
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