Perfluorinated polymer with unexpectedly efficient deep blue electroluminescence for full-colour OLED displays and light therapy applications (Articolo in rivista)

Type
Label
  • Perfluorinated polymer with unexpectedly efficient deep blue electroluminescence for full-colour OLED displays and light therapy applications (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c3tc31139b (literal)
Alternative label
  • Umberto Giovanella, Chiara Botta, Francesco Galeotti, Barbara Vercelli, Salvatore Battiato, Mariacecilia Pasini (2013)
    Perfluorinated polymer with unexpectedly efficient deep blue electroluminescence for full-colour OLED displays and light therapy applications
    in JOURNAL OF MATERIALS CHEMISTRY C
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Umberto Giovanella, Chiara Botta, Francesco Galeotti, Barbara Vercelli, Salvatore Battiato, Mariacecilia Pasini (literal)
Pagina inizio
  • 5322 (literal)
Pagina fine
  • 5329 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/content/articlepdf/2013/TC/C3TC31139B (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 1 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 34 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Umberto Giovanella, Istituto per lo Studio delle Macromolecole (ISMAC) via E. Bassini 15, 20133 Milano (Italy) Chiara Botta, Istituto per lo Studio delle Macromolecole (ISMAC) via E. Bassini 15, 20133 Milano (Italy) Francesco Galeotti, Istituto per lo Studio delle Macromolecole (ISMAC) via E. Bassini 15, 20133 Milano (Italy) Barbara Vercelli, CNR, Istituto per l'Energetica e le Interfasi, Via Cozzi 53, 20125 Milano (Italy) Salvatore Battiato, CNR, Istituto di Chimica e Tecnologia dei Polimeri (ICTP) U.O.S. Catania - CNR, Via Gaifami 18, 95126 Catania (Italy) Mariacecilia Pasini, CNR, Istituto per lo Studio delle Macromolecole (ISMAC) via E. Bassini 15, 20133 Milano (Italy) (literal)
Titolo
  • Perfluorinated polymer with unexpectedly efficient deep blue electroluminescence for full-colour OLED displays and light therapy applications (literal)
Abstract
  • The fluorinated phenylene unit is used as a building block for an all-conjugated fluorene-based alternating copolymer (PFO-TFP). The synthesis, carried out by an optimized Suzuki cross-coupling, produces an extremely high purity compound with a series of intriguing properties. Firstly, a blue-shift of the absorption and emission spectra with respect to the parent polymer is achieved. Secondly, the photoluminescence (PL) quantum yields (QYs) of the solution, as high as 68%, are surprisingly retained in the solid-state. Finally, an improved colour stability of the film with respect to unsubstituted polymers, investigated by means of cyclic voltammetry and exposure to ultraviolet radiation, is observed. The PFO-TFP tested as an undoped active layer in a polymer light-emitting diode (PLED) shows a highly desirable pure deep blue 405 nm electroluminescence, CIE = (0.17; 0.06) and a remarkable 5.03% external quantum efficiency, thus fulfilling the requirements for both full-colour displays and biomedical applications. To date, fluorine atom incorporation has been successfully employed in the synthesis of high-performing polymers for organic field-effect transistors and photovoltaics. We give the first unambiguous proof of its efficacy in achieving pure deep blue electroluminescence in a highly efficient and stable PLED, which is competitive with the best reported conjugated oligomer-based devices. (literal)
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