Height stabilization of GaSb/GaAs quantum dots by Al-rich capping

GaSb quantum dots (QDs) in a GaAs matrix are investigated with cross-sectional scanning tunneling microscopy (X-STM) and photoluminescence (PL). We observe that Al-rich capping materials prevent destabilization of the nanostructures during the capping stage of the molecular beam epitaxy (MBE) growth...

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Bibliographic Details
Main Authors: E. P. Smakman, M. DeJarld, M. Luengo-Kovac, A. J. Martin, V. Sih, P. M. Koenraad, J. Millunchick
Format: Article
Language:English
Published: AIP Publishing LLC 2014-09-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4895783