Role of defect states on Auger processes in resonantly pumped CdSe nanorods (Articolo in rivista)

Type
Label
  • Role of defect states on Auger processes in resonantly pumped CdSe nanorods (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2776847 (literal)
Alternative label
  • Creti, A; Anni, M; Rossi, MZ; Lanzani, G; Manna, L; Lomascolo, M (2007)
    Role of defect states on Auger processes in resonantly pumped CdSe nanorods
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Creti, A; Anni, M; Rossi, MZ; Lanzani, G; Manna, L; Lomascolo, M (literal)
Pagina inizio
  • 93106 (literal)
Pagina fine
  • 93106 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://apl.aip.org/resource/1/applab/v91/i9/p093106_s1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 91 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, IMM, I-73100 Lecce, Italy; Politecn Milan, CNR INFM, Dipartimento Fis, Natl Lab Ultrafast & Ultraintense Opt Sci, I-20133 Milan, Italy; Univ Salento, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy (literal)
Titolo
  • Role of defect states on Auger processes in resonantly pumped CdSe nanorods (literal)
Abstract
  • The authors investigated, by femtosecond pump-probe measurements, the effects on Auger and trapping processes of excitation resonant (R) to the 1S absorption in CdSe nanorods. They demonstrate that R pumping allows one to avoid exciton trapping in high energy defect states and that the presence of empty defect states leads to an enhancement of the Auger relaxation, with respect to the pumping at energies high above the band gap. Moreover, they show that, despite the Auger enhancement, R pumping increases the stimulated emission lifetime demonstrating that it is not limited by Auger scattering, as widely believed, but by photoabsorption processes, involving defect states. (literal)
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