Excimer-based red/near-infrared organic light-emitting diodes with very high quantum efficiency (Articolo in rivista)

Type
Label
  • Excimer-based red/near-infrared organic light-emitting diodes with very high quantum efficiency (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2898159 (literal)
Alternative label
  • M. Cocchi, J. Kalinowski, D. Virgili, J.A.G. Williams (2008)
    Excimer-based red/near-infrared organic light-emitting diodes with very high quantum efficiency
    in Applied physics letters; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Cocchi, J. Kalinowski, D. Virgili, J.A.G. Williams (literal)
Pagina inizio
  • 113302 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 92 (literal)
Rivista
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  • 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 11 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Department of Molecular Physics, GdaDsk University of Technology, 80-952 GdaDsk, Poland Department of Chemistry, University of Durham, Durham DH1 3LE, United Kingdom (literal)
Titolo
  • Excimer-based red/near-infrared organic light-emitting diodes with very high quantum efficiency (literal)
Abstract
  • Various light output measures of red/near-infrared (NIR) excimer-based organic light-emitting diodes (LEDs) are reported for different cathodes (Al, Al/LiF, Ca, and Ca/PbO(2)). By using a selected phosphor (PtL(2)Cl) from a series of terdentate cyclometallated efficient phosphorescent Pt(II) complexes, PtL(n)Cl, as the neat film emitting layer and a Ca/Pb(IV)O(2) cathode, the authors achieve unusually high forward viewing external quantum efficiencies of up to 14.5% photons/electron and a power conversion efficiency of up to 6% at a high emission forward output of 25 mW/cm(2). These are the highest efficiencies reported for a NIR organic LED. Electron tunneling through thin insulating layers of LiF and Pb(IV)O(2) and the difference in band bending at the organic electron transporting layer and the cathode between the samples are used to explain this performance achievement. (literal)
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