Selective optical pumping of charged excitons in unintentionally doped InAs quantum dots (Articolo in rivista)

Type
Label
  • Selective optical pumping of charged excitons in unintentionally doped InAs quantum dots (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0957-4484/19/14/145711 (literal)
Alternative label
  • Munoz-Matutano G.; Alen B.; Martinez-Pastor J.; Seravalli L.; Frigeri P.; Franchi S. (2008)
    Selective optical pumping of charged excitons in unintentionally doped InAs quantum dots
    in Nanotechnology (Bristol. Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Munoz-Matutano G.; Alen B.; Martinez-Pastor J.; Seravalli L.; Frigeri P.; Franchi S. (literal)
Pagina inizio
  • 145711 (literal)
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  • http://iopscience.iop.org/0957-4484/19/14/145711 (literal)
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  • 19 (literal)
Rivista
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  • In: Nanotechnology, vol. 19 article n. 145711. IOP Publishing, 2008. (literal)
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  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Instituto de Ciencias de los Materiales, Universitat de València, PO Box 22085, 46071 Valencia, Spain Instituto de Microelectrónica de Madrid (CNM-CSIC), Isaac Newton 8, 28760 Tres Cantos, Madrid, Spain Istituto dei Materiali per l'Elettronica e il Magnetismo (CNR), Parco delle Scienze 37/a, I-43100 Parma, Italy (literal)
Titolo
  • Selective optical pumping of charged excitons in unintentionally doped InAs quantum dots (literal)
Abstract
  • We have investigated the selective optical pumping of charged excitonic species in a sample containing quantum dots of different sizes and low areal density by photoluminescence and excitation of the photoluminescence microspectroscopy. We study the selective optical excitation of negatively charged excitons as an alternative to commonly used electrical methods. We demonstrate that under resonant excitation in impurity related bands, the selective pumping efficiency can be as high as 85% in small quantum dots having one electron shell and emitting at around 930 nm, and around 65% in big quantum dots having four electron shells and emitting at 1160 nm. (literal)
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