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Título : Room temperature emission at 1.6 µm from InGaAs quantum dots capped with GaAsSb
Autor : Ripalda, José María, Granados, Daniel, González Díez, Yolanda, Sánchez, A. M., Molina, Sergio I., García Martínez, Jorge Manuel
Palabras clave : Gallium arsenide
Indium compounds
III-V semiconductors
Semiconductor quantum dots
Semiconductor quantum wells
Red shift
Transmission electron microscopy
Fecha de publicación : 9-Nov-2005
Editor: American Institute of Physics
Citación : Applied Physics Letters 87, 202108 (2005)
Resumen: Room temperature photoluminescence at 1.6 µm is demonstrated from InGaAs quantum dots capped with an 8 nm GaAsSb quantum well. Results obtained from various sample structures are compared, including samples capped with GaAs. The observed redshift in GaAsSb capped samples is attributed to a type II band alignment and to a beneficial modification of growth kinetics during capping due to the presence of Sb. The sample structure is discussed on the basis of transmission electron microscopy results.
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ISSN: 0003-6951
DOI: 10.1063/1.2130529
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