Long wavelength emission in InxGa1-xAs quantum dot structures grown in a GaAs barrier by metalorganic chemical vapor deposition (Articolo in rivista)

Type
Label
  • Long wavelength emission in InxGa1-xAs quantum dot structures grown in a GaAs barrier by metalorganic chemical vapor deposition (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.1652255 (literal)
Alternative label
  • A.Passaseo; V. Tasco; M. De Giorgi; M. T. Todaro; M. De Vittorio; R. Cingolani (2004)
    Long wavelength emission in InxGa1-xAs quantum dot structures grown in a GaAs barrier by metalorganic chemical vapor deposition
    in Applied physics letters; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A.Passaseo; V. Tasco; M. De Giorgi; M. T. Todaro; M. De Vittorio; R. Cingolani (literal)
Pagina inizio
  • 1868 (literal)
Pagina fine
  • 1870 (literal)
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  • http://apl.aip.org (literal)
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  • 84 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 3 (literal)
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  • 11 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • NNL-INFM-Unita` di Lecce (literal)
Titolo
  • Long wavelength emission in InxGa1-xAs quantum dot structures grown in a GaAs barrier by metalorganic chemical vapor deposition (literal)
Abstract
  • We demonstrate a method to obtain room temperature long wavelength emission from InGaAs quantum dots ~QDs! growth directly into a binary GaAs matrix. The wavelength is tuned from 1.26 up to 1.33 mm by varying the V/III ratio during growth of the GaAs cap layer, without using a seeding layer or InGaAs wells. Strong improvement in terms of line-shape narrowing and efficiency is obtained. In addition to the shift in wavelength we observe an impressive reduction of temperature dependent quenching of the emission efficiency, which decreases only by a factor of 3 between cryogenic temperatures and room temperature, very good for QD structures emitting at 1.3 mm. Photoluminescence spectroscopy and theoretical modeling were combined for interpretation of the results. (literal)
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