http://www.cnr.it/ontology/cnr/individuo/prodotto/ID54100
Electroluminescent Poly(fluorene-co-thiophene-S,S-dioxide): synthesis, characterisation and structure-property relationships?. (Articolo in rivista)
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- 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)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Mariacecilia Pasini, Silvia Destri, William Porzio, Chiara Botta and Umberto Giovanella (literal)
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- http://pubs.rsc.org/en/Content/ArticleLanding/2003/JM/b208742a#!divAbstract (literal)
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- 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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