Electromodulation of monomer and excimer phosphorescence in vacuum-evaporated films of platinum (II) complexes of 1,3-di(2-pyridyl)benzenes (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Electromodulation of monomer and excimer phosphorescence in vacuum-evaporated films of platinum (II) complexes of 1,3-di(2-pyridyl)benzenes (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.orgel.2013.08.012 (literal)

Alternative label

• Mroz W.; Falkowski K.; Misnik M.; Rossi E.; Balordi M.; Stampor W. (2013)
  Electromodulation of monomer and excimer phosphorescence in vacuum-evaporated films of platinum (II) complexes of 1,3-di(2-pyridyl)benzenes
  in Organic electronics (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Mroz W.; Falkowski K.; Misnik M.; Rossi E.; Balordi M.; Stampor W. (literal)

Pagina inizio

• 2880 (literal)

Pagina fine

• 2888 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com/science/article/pii/S1566119913003753 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 14 (literal)

Rivista

• Organic electronics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 11 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Mroz W.; Gdansk Univ Technol, Dept Elect Phenomena, PL-80233 Gdansk, Poland; CNR, Ist Studio Macromol ISMAC, I-20133 Milan, Italy Falkowski K.Gdansk Univ Technol, Dept Elect Phenomena, PL-80233 Gdansk, Poland Misnik M.; Gdansk Univ Technol, Dept Elect Phenomena, PL-80233 Gdansk, Poland, Tele & Radio Res Inst, Vacuum Measurement Lab, PL-03450 Warsaw, Poland Rossi E.; Balordi M.; Univ Milan, UdR INSTM Milano, Dipartimento Chim Inorgan Metallorgan & Analit La, I-20133 Milan, Italy Stampor W.: Gdansk Univ Technol, Dept Elect Phenomena, PL-80233 Gdansk, Poland (literal)

Titolo

• Electromodulation of monomer and excimer phosphorescence in vacuum-evaporated films of platinum (II) complexes of 1,3-di(2-pyridyl)benzenes (literal)

Abstract

• Electric field-modulated photoluminescence (EML) measurements are presented for vacuum-evaporated films of cyclometallated Pt (II) complexes of 1,3-di(2-pyridyl) benzenes used as triplet emitters in organic light-emitting diodes (OLEDs). The excimer phosphorescence is quenched by the external electric field of 2.5 MV/cm up to 25% but the same effect on monomer phosphorescence is one order of magnitude smaller. The higher quenching effect for triplet excimers than triplet monomers in solid films of Pt complexes is rationalized assuming excimers to be populated within excimer-active domains of the films through an intermediate stage of geminate (e-h) pairs derived from dissociated monomer excitons. The EML data for excimers are successfully described in the framework of Sano-Tachiya-Noolandi-Hong (STNH) theory of geminate (e-h) pair recombination where the final recombination step (e-h capture) proceeds on a sphere of finite radius (a) with a finite speed. The conventional Onsager theory (a = 0) is sufficient to explain the EML quenching effect for monomers. The results are important for explaining the decrease of electroluminescence quantum efficiency observed in OLEDs working under high electric fields. (literal)

Prodotto di

• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)
• Nano/Microsistemi organici, ibridi per optoelettronica (PM.P04.001.006) (Modulo)

Autore CNR

• WOJCIECH MROZ (Unità di personale esterno)

Insieme di parole chiave

• Keywords of "Electromodulation of monomer and excimer phosphorescence in vacuum-evaporated films of platinum (II) complexes of 1,3-di(2-pyridyl)benzenes" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per lo studio delle macromolecole (ISMAC) (Istituto)
• Nano/Microsistemi organici, ibridi per optoelettronica (PM.P04.001.006) (Modulo)

Autore CNR di

• WOJCIECH MROZ (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Organic electronics (Rivista)

Insieme di parole chiave di

• Keywords of "Electromodulation of monomer and excimer phosphorescence in vacuum-evaporated films of platinum (II) complexes of 1,3-di(2-pyridyl)benzenes" (Insieme di parole chiave)