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dc.contributor.authorCorrea, D. S.
dc.contributor.authorOliveira, S. L.
dc.contributor.authorMisoguti, L.
dc.contributor.authorZilio, S. C.
dc.contributor.authorAroca, R. F.
dc.contributor.authorConstantino, CJL
dc.contributor.authorMendonca, C. R.
dc.identifier.citationJournal of Physical Chemistry A. Washington: Amer Chemical Soc, v. 110, n. 20, p. 6433-6438, 2006.
dc.description.abstractWe investigated the 2PA absorption spectrum of a family of perylene tetracarboxylic derivatives ( PTCDs): bis( benzimidazo) perylene ( AzoPTCD), bis( benzimidazo) thioperylene ( Monothio BZP), n-pentylimidobenzimidazoperylene ( PazoPTCD), and bis( n-butylimido) perylene ( BuPTCD). These compounds present extremely high two-photon absorption, which makes them attractive for applications in photonics devices. The two-photon absorption cross-section spectra of perylene derivatives obtained via Z-scan technique were fitted by means of a sum-over-states ( SOS) model, which described with accuracy the different regions of the 2PA cross-section spectra. Frontier molecular orbital calculations show that all molecules present similar features, indicating that nonlinear optical properties in PTCDs are mainly determined by the central portion of the molecule, with minimal effect from the lateral side groups. In general, our results pointed out that the differences in the 2PA cross-sections among the compounds are mainly due to the nonlinearity resonance enhancement.en
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Physical Chemistry A
dc.sourceWeb of Science
dc.titleInvestigation of the two-photon absorption cross-section in perylene tetracarboxylic derivatives: Nonlinear spectra and molecular structureen
dcterms.rightsHolderAmer Chemical Soc
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniv Windsor
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionHarvard Univ
dc.description.affiliationUNESP, Dept Fis Quim & Biol, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.affiliationUniv Windsor, Mat & Surface Sci Grp, Windsor, ON N9B 3P4, Canada
dc.description.affiliationUniv São Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationHarvard Univ, Dept Phys, Cambridge, MA 02138 USA
dc.description.affiliationUnespUNESP, Dept Fis Quim & Biol, BR-19060900 Presidente Prudente, SP, Brazil
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Tecnologia, Presidente Prudentept[3][2][1]
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