Characterization of hydrogen passivated defects in strain-engineered semiconductor quantum dot structures (Articolo in rivista)

Type
Label
  • Characterization of hydrogen passivated defects in strain-engineered semiconductor quantum dot structures (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2358397 (literal)
Alternative label
  • Gurioli M. a; Zamfirescu M. a; Vinattieri A. a; Sanguinetti S. b; Grilli E. b; Guzzi M. b; Mazzucato S. c; Polimeni A. c; Capizzi M. c; Seravalli L. d; Frigeri P. d; Franchi S. (2006)
    Characterization of hydrogen passivated defects in strain-engineered semiconductor quantum dot structures
    in Journal of applied physics; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gurioli M. a; Zamfirescu M. a; Vinattieri A. a; Sanguinetti S. b; Grilli E. b; Guzzi M. b; Mazzucato S. c; Polimeni A. c; Capizzi M. c; Seravalli L. d; Frigeri P. d; Franchi S. (literal)
Pagina inizio
  • 084313-1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • PACS: 81.65.Rv, 78.67.Hc, 78.55.Cr, 78.47.-p, 73.63.Kv, 42.70.Nq (literal)
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  • http://jap.aip.org/resource/1/japiau/v100/i8/p084313_s1 (literal)
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  • 100 (literal)
Rivista
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  • 4 (literal)
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  • 8 (literal)
Note
  • Scopu (literal)
  • Google Scholar (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Dipartimento di Fisica, CNISM, Universit? di Firenze, Via Sansone 1, I-50019, Sesto Fiorentino, Italy; b Dipartimento di Scienza Dei Material, CNISM, Universit? di Milano-Bicocca, Via Cozzi 53, I-20125 Milano, Italy; c Dipartimento di Fisica, CNISM, Universit? di Roma la Sapienza, I-00185 Roma, Italy; d CNR-IMEM Institute, Parco delle Scienze 37A, I-43100 Parma, Italy (literal)
Titolo
  • Characterization of hydrogen passivated defects in strain-engineered semiconductor quantum dot structures (literal)
Abstract
  • The effects of hydrogen incorporation on carrier relaxation and recombination efficiencies in a large series of InAs self-assembled quantum dot structures deposited on InGaAs lower confining layers with different thicknesses and compositions have been addressed. With increasing H dose we observe an improvement in the radiative efficiency. By comparing steady state and time resolved photoluminescence measurements, it is established that the H passivation does not enhance the relaxation and capture efficiencies, but instead directly improves the emission yield from carriers in the dots. We therefore conclude that the H-passivated defects are located nearby, or even inside, the dots. (literal)
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