Desorption and ripening of low density InAs quantum dots.
J Nanosci Nanotechnol
; 9(2): 844-7, 2009 Feb.
Article
en En
| MEDLINE
| ID: mdl-19441405
In this paper, combining low deposition rate with proper growth temperature, we have developed a way to prepare very low-density quantum dots (QDs) suited for the study of single QD properties without resorting to submicron lithography. Experiment results demonstrate that InAs desorption is significant during growing the low density QDs. Ripening of InAs QDs is clearly observed during the post-growth annealing. Photoluminescence spectroscopy reveals that the emission wavelength of low density InAs QDs arrives at 1332.4 nm with a GaAs capping layer.
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Base de datos:
MEDLINE
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En
Revista:
J Nanosci Nanotechnol
Año:
2009
Tipo del documento:
Article