Subpicosecond timescale carrier dynamics in GaInAsSb/AlGaAsSb double quantum wells emitting at 2.3 mu m (Articolo in rivista)

Type
Label
  • Subpicosecond timescale carrier dynamics in GaInAsSb/AlGaAsSb double quantum wells emitting at 2.3 mu m (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Raino, G; Salhi, A; Tasco, V; Intartaglia, R; Cingolani, R; Rouillard, Y; Tournie, E; De Giorgi, M (2008)
    Subpicosecond timescale carrier dynamics in GaInAsSb/AlGaAsSb double quantum wells emitting at 2.3 mu m
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Raino, G; Salhi, A; Tasco, V; Intartaglia, R; Cingolani, R; Rouillard, Y; Tournie, E; De Giorgi, M (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 92 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Raino, G.; Salhi, A.; Tasco, V.; Intartaglia, R.; Cingolani, R.; De Giorgi, M.] Univ Salento, CNR, INFM Distretto Tecnol ISUFI, Natl Nanotechnol Lab, I-73100 Lecce, Italy; [Rouillard, Y.; Tournie, E.] Univ Montpellier 2, CNRS, UMR 5214, Inst Elect Sud, F-34095 Montpellier 5, France (literal)
Titolo
  • Subpicosecond timescale carrier dynamics in GaInAsSb/AlGaAsSb double quantum wells emitting at 2.3 mu m (literal)
Abstract
  • We report the results of an extensive optical investigation by continuous-wave and time resolved photoluminescence experiments on double GaInAsSb/AlGaAsSb quantum wells emitting at 2.3 mu m at room temperature. We have found that, at low temperature (< 70 K), the recombination is dominated by excitons trapped in disorder and interface defects. Whereas, at higher temperature, free-exciton recombination occurs. The observed temperature dependent photoluminescence quenching is ascribed to the ionization of bound exciton at low temperatures, while thermoionic emission of the hole out of the quantum well dominates photoluminescence quenching at high temperatures. The experimental results are supported by theoretical calculations. (c) 2008 American Institute of Physics. (literal)
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