We investigated on the growth, by molecular beam epitaxy, of InAs quantum dots on nanoscale areas of the GaAs(001) surface defined by an e-beam lithographed SiO2 mask. The selective self-assembling of the InAs dots inside the holes of the mask was obtained by a suitable choice of the growth parameters and of the pattern size. Photoluminescence from the spatially confined dots showed a blue-shifted emission but a radiative decay comparable to that of dots nucleated on the extended GaAs surface.

Selective growth of InAs quantum dots on SiO2-masked GaAs / Arciprete, F.; Placidi, E.; Pattella, F.; Fanfoni, M.; Balzarotti, A.; Vinattieri, A.; Cavigli, L.; Abbarchi, M.; Gurioli, M.; Lunghi, L.; Gerardino, A.. - In: JOURNAL OF NANOPHOTONICS. - ISSN 1934-2608. - 3:1(2009). [10.1117/1.3266494]

Selective growth of InAs quantum dots on SiO2-masked GaAs

Placidi E.;
2009

Abstract

We investigated on the growth, by molecular beam epitaxy, of InAs quantum dots on nanoscale areas of the GaAs(001) surface defined by an e-beam lithographed SiO2 mask. The selective self-assembling of the InAs dots inside the holes of the mask was obtained by a suitable choice of the growth parameters and of the pattern size. Photoluminescence from the spatially confined dots showed a blue-shifted emission but a radiative decay comparable to that of dots nucleated on the extended GaAs surface.
2009
InAs/GaAs; photoluminescence; Quantum dots; selective molecular beam epitaxy
01 Pubblicazione su rivista::01a Articolo in rivista
Selective growth of InAs quantum dots on SiO2-masked GaAs / Arciprete, F.; Placidi, E.; Pattella, F.; Fanfoni, M.; Balzarotti, A.; Vinattieri, A.; Cavigli, L.; Abbarchi, M.; Gurioli, M.; Lunghi, L.; Gerardino, A.. - In: JOURNAL OF NANOPHOTONICS. - ISSN 1934-2608. - 3:1(2009). [10.1117/1.3266494]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1326874
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