The fabrication, by droplet epitaxy, of a class of quantum nanostructures characterized by a regular, nanometres high, flat disks with a diameter of hundreds of nanometres and a hole at the centre encircled by a ring a few nanometres high, is presented here. A detailed analysis of the growth kinetics performed via insitu and exsitu probes allows us to propose a working model for the formation of these structures. © 2010 IOP Publishing Ltd.
Somaschini, C., Bietti, S., Sanguinetti, S., Koguchi, N., Fedorov, A. (2010). Self-assembled GaAs/AlGaAs coupled quantum ring-disk structures by droplet epitaxy. NANOTECHNOLOGY, 21(12) [10.1088/0957-4484/21/12/125601].
Self-assembled GaAs/AlGaAs coupled quantum ring-disk structures by droplet epitaxy
SOMASCHINI, CLAUDIO;BIETTI, SERGIO;SANGUINETTI, STEFANO
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2010
Abstract
The fabrication, by droplet epitaxy, of a class of quantum nanostructures characterized by a regular, nanometres high, flat disks with a diameter of hundreds of nanometres and a hole at the centre encircled by a ring a few nanometres high, is presented here. A detailed analysis of the growth kinetics performed via insitu and exsitu probes allows us to propose a working model for the formation of these structures. © 2010 IOP Publishing Ltd.
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