Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2385
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dc.contributor.authorGülen, Demet-
dc.contributor.authorÖzçelik, Serdar-
dc.date.accessioned2016-11-07T14:35:50Z
dc.date.available2016-11-07T14:35:50Z
dc.date.issued2008-05
dc.identifier.citationGülen, D., and Özçelik, S. (2008). Absorption spectrum of monomeric pseudoisocyanine: A new perspective and its implications for formation and spectral response of J-aggregates in solution and in thin films. Journal of Luminescence, 128(5-6), 834-837. doi:10.1016/j.jlumin.2007.11.019en_US
dc.identifier.issn0022-2313
dc.identifier.issn0022-2313-
dc.identifier.urihttp://doi.org/10.1016/j.jlumin.2007.11.019
dc.identifier.urihttp://hdl.handle.net/11147/2385
dc.descriptionProceedings of the 16th International Conference on Dynamical Processes in Excited States of Solidsen_US
dc.description.abstractWe argued against the current spectral assignment for absorption spectrum of monomeric PIC which is widely accepted since the pioneering works of Scheibe and Jelley [G. Scheibe, Angew. Chem. 49 (1936) 563; E.E. Jelly, Nature 138 (1936) 1009]. A new spectrum is presented along with its conceptual basis. The hypothesized spectrum attributes the previous 0-0 (≈525 nm) and 0-1 (≈490 nm) assignments, respectively, to intermediates acting as the precursor of J-aggregates and to the 0-0 transition of monomeric PIC and brings the spectrum in accord with the seemingly universal spectral fingerprint of cyanines. The hypothesis is used to analyze and interpret the temperature dependence of the UV-vis absorption of PIC aggregates in saline aqueous solution by incorporating the J-band simulations within frenkel exciton formalism. Its implications for aggregate formation kinetics are given on the basis of current spectroscopic evidence. The hypothesis readily answers several long-standing questions: Why compared to many other cyanines at least an order of magnitude higher dye concentration is needed to form J-aggregates of PIC? Why are there no precursors, since aggregation is expected to be a consecutive process? A large number of observations on steady-state and time-resolved spectral properties, and aggregation kinetics in solution/thin films are likely to find reasonable explanations within this hypothesis.en_US
dc.language.isoenen_US
dc.publisherElsevier Ltd.en_US
dc.relation.ispartofJournal of Luminescenceen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMonomersen_US
dc.subjectFrenkel excitonen_US
dc.subjectJ-aggregatesen_US
dc.subjectPseudoisocyanineen_US
dc.subjectUV-vis absorptionen_US
dc.titleAbsorption spectrum of monomeric pseudoisocyanine: A new perspective and its implications for formation and spectral response of J-aggregates in solution and in thin filmsen_US
dc.typeArticleen_US
dc.authoridTR7497en_US
dc.institutionauthorÖzçelik, Serdar-
dc.departmentIzmir Institute of Technology. Chemistryen_US
dc.identifier.volume128en_US
dc.identifier.issue5-6en_US
dc.identifier.startpage834en_US
dc.identifier.endpage837en_US
dc.identifier.wosWOS:000255423400042en_US
dc.identifier.scopus2-s2.0-40649096659en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1016/j.jlumin.2007.11.019-
dc.relation.doi10.1016/j.jlumin.2007.11.019en_US
dc.coverage.doi10.1016/j.jlumin.2007.11.019en_US
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.fulltextWith Fulltext-
item.cerifentitytypePublications-
crisitem.author.dept04.01. Department of Chemistry-
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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