Electroluminescent Poly(fluorene-co-thiophene-S,S-dioxide): synthesis, characterisation and structure-property relationships?. (Articolo in rivista)

Type
Label
  • Electroluminescent Poly(fluorene-co-thiophene-S,S-dioxide): synthesis, characterisation and structure-property relationships?. (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/B208742A (literal)
Alternative label
  • Mariacecilia Pasini, Silvia Destri, William Porzio, Chiara Botta and Umberto Giovanella (2003)
    Electroluminescent Poly(fluorene-co-thiophene-S,S-dioxide): synthesis, characterisation and structure-property relationships?.
    in Journal of materials chemistry (Print); Royal Society of Chemistry, Cambridge (Regno Unito)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Mariacecilia Pasini, Silvia Destri, William Porzio, Chiara Botta and Umberto Giovanella (literal)
Pagina inizio
  • 807 (literal)
Pagina fine
  • 812 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.rsc.org/en/Content/ArticleLanding/2003/JM/b208742a#!divAbstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 13 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per lo Studio delle Macromolecole del C.N.R., via E. Bassini 15, 20133 Milano, Italy (literal)
Titolo
  • Electroluminescent Poly(fluorene-co-thiophene-S,S-dioxide): synthesis, characterisation and structure-property relationships?. (literal)
Abstract
  • A new copolymer, constituted by the regular alternation of a fluorene derivative with 1,1-dioxothiophene moiety, has been synthesised via Suzuki coupling. The molecular, thermal, structural, and photophysical characterisations have been performed. The material showed two dimensional order, enhanced by annealing; molecular modelling calculations afforded a consistent structural model accounting for the optical data. In comparison with both polyfluorenes and 1,1-dioxothiophene oligomers the unusual trend of photoluminescence quantum yield observed in solution and solid state was related to both a significant contribution of internal conversion in the deactivation process, in solution, and the formation of intra-chain hydrogen-bonds, due to the peculiar chain conformation, in solid state. LED devices showed the highest efficiency in the yellow region among similar copolymers containing both fluorene and 1,1-dioxothiophene functionalities. (literal)
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