OPTICAL-EXCITATIONS OF POLY-3-ALKYLTHIOPHENE FILMS AND SOLUTIONS (Articolo in rivista)

Type
Label
  • OPTICAL-EXCITATIONS OF POLY-3-ALKYLTHIOPHENE FILMS AND SOLUTIONS (Articolo in rivista) (literal)
Anno
  • 1992-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.46.13008 (literal)
Alternative label
  • BOTTA, C ; LUZZATI, S ; TUBINO, R ; BORGHESI, A (1992)
    OPTICAL-EXCITATIONS OF POLY-3-ALKYLTHIOPHENE FILMS AND SOLUTIONS
    in Physical review. B, Condensed matter and materials physics; American Physical Society (APS), College Pk (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • BOTTA, C ; LUZZATI, S ; TUBINO, R ; BORGHESI, A (literal)
Pagina inizio
  • 13008 (literal)
Pagina fine
  • 13016 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prb.aps.org/abstract/PRB/v46/i20/p13008_1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 46 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR,IST CHIM MACROMOLEC,VIA BASSINI 15,I-20133 MILAN,ITALY. UNIV SASSARI,IST MATEMAT & FIS,I-07100 SASSARI,ITALY UNIV MODENA,IST FIS,I-41100 MODENA,ITALY (literal)
Titolo
  • OPTICAL-EXCITATIONS OF POLY-3-ALKYLTHIOPHENE FILMS AND SOLUTIONS (literal)
Abstract
  • We report a comparative study of the optical properties and photoexcitations of solid-state and solution samples of poly-3-alkylthiophenes. The pi-electron delocalization and backbone conformational properties are investigated by resonant and preresonant Raman scattering. Photoexcited electronic states are studied by cw photomodulation spectroscopy. The intensity and chopper-frequency dependence of the photoinduced electronic bands indicate two different photoexcitation pathways. An interchain mechanism takes place in the solid while in solution a weak solvent-polymer charge transfer is proposed. (literal)
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