Tuning of the excited-state lifetime by control of the structural relaxation in oligothiophenes (Articolo in rivista)

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  • Tuning of the excited-state lifetime by control of the structural relaxation in oligothiophenes (Articolo in rivista) (literal)
Anno
  • 1998-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.58.9082 (literal)
Alternative label
  • T.Benincori, G.Bongiovanni, C.Botta, G.Cerullo, G.Lanzani, A.Mura, L,Rossi, F.Sannicolò and R.Tubino (1998)
    Tuning of the excited-state lifetime by control of the structural relaxation in oligothiophenes
    in Physical review. B, Condensed matter; The American Physical Society, College Park, MD 20740-3844 (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • T.Benincori, G.Bongiovanni, C.Botta, G.Cerullo, G.Lanzani, A.Mura, L,Rossi, F.Sannicolò and R.Tubino (literal)
Pagina inizio
  • 9082 (literal)
Pagina fine
  • 9086 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=33&SID=P15hDgAMPf89p2KI539&page=1&doc=4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 58 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 14 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • C.Botta - ICM CNR; G.Cerullo- Politecnico Milano; G.Lanzani - Univ Sassari; G.Bongiovanni, A.Mura Univ Cagliari; L. Rossi - Univ Pavia; T.Benincori, F.Sannicolò , R.Tubino - Univ Milano (literal)
Titolo
  • Tuning of the excited-state lifetime by control of the structural relaxation in oligothiophenes (literal)
Abstract
  • optical excitations of quaterthiophenes in which one (or two) inter-ring torsional angles have been blocked by chemical bridging have been studied with various cw and time-resolved spectroscopic techniques. The suppression of inter-ring torsion modifies the deactivation path of the excited start: leading to ii reduction of nonradiative decay. This implies an increase of the lifetime of the singlet excited state and therefore of the photoluminescence quantum yield for the compounds with reduced conformational mobility. It is found that tripler transient absorption spectra are strongly affected by central inter-ring bridging, showing features which are tentatively related to different conformers. (literal)
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