Suppression of the excimer photoluminescence in a poly(arylene-ethynylene) co-polymer (Articolo in rivista)

Type
Label
  • Suppression of the excimer photoluminescence in a poly(arylene-ethynylene) co-polymer (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.cplett.2005.08.074 (literal)
Alternative label
  • Pizzoferrato R. a; Ziller T. a; Micozzi A. b; Ricci A. c; LoSterzo C. c; Ustione A. d; Oliva C. d; Cricenti A. d,e (2005)
    Suppression of the excimer photoluminescence in a poly(arylene-ethynylene) co-polymer
    in Chemical physics letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pizzoferrato R. a; Ziller T. a; Micozzi A. b; Ricci A. c; LoSterzo C. c; Ustione A. d; Oliva C. d; Cricenti A. d,e (literal)
Pagina inizio
  • 234 (literal)
Pagina fine
  • 238 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 414 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1-3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a INFM, Dipartimento di Ingegneria Meccanica, Università di Tor Vergata, Roma, Italy; b Istituto CNR di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, Dipartimento di Chimica, Universita` ?La Sapienza?, Roma, Italy; c Dipartimento di Scienze degli Alimenti, Università degli Studi di Teramo, Mosciano S. Angelo, Teramo, Italy; d Istituto di Struttura della Materia - CNR, Roma, Italy; e Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37212, USA (literal)
Titolo
  • Suppression of the excimer photoluminescence in a poly(arylene-ethynylene) co-polymer (literal)
Abstract
  • We have investigated the optical properties of a À-conjugated poly(arylene–ethynylene) co-polymer, the poly-{[(2,5-dioctyloxy)-1,4-phenylene acetylene]-co-2,6-pyridylene acetylene}, in liquid solutions and blended films with nonconjugated polymers. The red-shifted emission from excimers strongly influences the photoluminescence of solid-state samples but it can be suppressed by using in-vacuum thermal ageing or photoirradiation. Experimental observations suggest this quenching is due to structural reorganization processes that still occur in blends within phase-separated regions of pure co-polymer. Significantly, the suppression of the excimer band does not affect the exciton blue emission in blends, which could help improve color purity for OLEDs and display applications. (literal)
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