Making use of the droplet-epitaxial technique, we realized a series of GaAs/AlGaAs nanostructured samples, starting from the same initial Ga droplet configuration, in which the nanostructure morphologies are progressively changed, via the As partial pressure provided during the growth, from islands, to single rings and, eventually, to concentric ring structures. We report a detailed characterization of the different structure morphologies, electronic structures and carrier dynamics via AFM and pho-toluminescence measurements as well as through theoretical simulations

Bietti, S., Somaschini, C., Abbarchi, M., Koguchi, N., Sanguinetti, S., Poliani, E., et al. (2009). Quantum dots to double concentric quantum ring structures transition. PHYSICA STATUS SOLIDI. C, CURRENT TOPICS IN SOLID STATE PHYSICS, 6(4), 928-931 [10.1002/pssc.200880616].

Quantum dots to double concentric quantum ring structures transition

BIETTI, SERGIO
Primo
;
SOMASCHINI, CLAUDIO
Secondo
;
SANGUINETTI, STEFANO
;
POLIANI, EMANUELE MARIA;BONFANTI, MATTEO;
2009

Abstract

Making use of the droplet-epitaxial technique, we realized a series of GaAs/AlGaAs nanostructured samples, starting from the same initial Ga droplet configuration, in which the nanostructure morphologies are progressively changed, via the As partial pressure provided during the growth, from islands, to single rings and, eventually, to concentric ring structures. We report a detailed characterization of the different structure morphologies, electronic structures and carrier dynamics via AFM and pho-toluminescence measurements as well as through theoretical simulations
Articolo in rivista - Articolo scientifico
quantum dot; droplet epitaxy, molecular beam epitaxy
English
2009
6
4
928
931
none
Bietti, S., Somaschini, C., Abbarchi, M., Koguchi, N., Sanguinetti, S., Poliani, E., et al. (2009). Quantum dots to double concentric quantum ring structures transition. PHYSICA STATUS SOLIDI. C, CURRENT TOPICS IN SOLID STATE PHYSICS, 6(4), 928-931 [10.1002/pssc.200880616].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/49285
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