Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/134361
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Structural origin of enhanced luminescence efficiency of antimony irradiated InAs quantum dots |
Autor: | Beltrán, A. M.; Ben, Teresa; Sales, David L.; Sánchez, A. M.; Ripalda, José María CSIC ORCID ; González Taboada, Alfonso CSIC; Varela, María; Pennycook, Stephen J.; Molina, Sergio I. | Palabras clave: | Transmission electron microscopy Quantum dots inas-gaas High angle annular dark field Antonomy |
Fecha de publicación: | nov-2011 | Editor: | American Scientific Publishers | Citación: | Advanced Science Letters 4(11-12): 3776-3778 (2011) | Resumen: | We report that Sb irradiation combined with the presence of a GaAs intermediate layer previous to the deposition of a GaSb layer over InAs quantum dots grown by molecular beam epitaxy improves the crystalline quality of these nanostructures. Moreover, this approach to develop III-V-Sb nanostructures causes the formation of quantum dots buried by a confining GaSb layer and, in this way, achieving a type II band alignment. Both phenomena, studied by Conventional transmission electron microscopy (CTEM) and scanning-transmission electron microscope (STEM) techniques are keys to achieve the best room temperature photoluminescence results from InAs/GaAs (001) quantum dots. The Sb flux contributes to the preservation of the quantum dots size and at the same time reduces In diffusion from the wetting layer. © 2011 American Scientific Publishers. | Versión del editor: | http://dx.doi.org/10.1166/asl.2011.1873 | URI: | http://hdl.handle.net/10261/134361 | DOI: | 10.1166/asl.2011.1873 | Identificadores: | issn: 1936-6612 e-issn: 1936-7317 |
Aparece en las colecciones: | (IMN-CNM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
1
checked on 13-abr-2024
WEB OF SCIENCETM
Citations
1
checked on 24-feb-2024
Page view(s)
273
checked on 18-abr-2024
Download(s)
102
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.