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Formation of Spatially Addressed Ga(As)Sb Quantum Rings on GaAs(001) Substrates by Droplet Epitaxy

AuthorsAlonso-González, Pablo ; González Sotos, Luisa ; Fuster, David ; González Díez, Yolanda ; Taboada, Alfonso G.; Ripalda, José María ; Beltrán, A. M.; Sales, David L.; Ben, Teresa; Molina, Sergio I.
Issue Date2009
PublisherAmerican Chemical Society
CitationCrystal Growth and Design 9(2): 1216-1218 (2009)
AbstractIn this work we report on the ability to form low density Ga(As)Sb quantum ring-shaped nanostructures (Q-rings) on GaAs(001) substrates by the droplet epitaxy technique. The Q-rings are formed by crystallization of Ga droplets under antimony flux. After being capped by a GaAs layer, these nanostructures show surface mounding features that are correlated with the buried nanostructures, as demonstrated by TEM analysis, permitting an easy surface location of the optically active Q-rings.
Description3 páginas, 3 figuras.
Publisher version (URL)http://dx.doi.org/10.1021/cg801186w
Appears in Collections:(IMN-CNM) Artículos
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