Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11842
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dc.contributor.authorAksoy, Erkan-
dc.contributor.authorDanos, Andrew-
dc.contributor.authorLi, Chunyong-
dc.contributor.authorMonkman, Andrew P.-
dc.contributor.authorVarlıklı, Canan-
dc.date.accessioned2021-12-02T18:16:18Z-
dc.date.available2021-12-02T18:16:18Z-
dc.date.issued2021-
dc.identifier.issn1932-7447-
dc.identifier.issn1932-7455-
dc.identifier.urihttps://doi.org/10.1021/acs.jpcc.1c03131-
dc.identifier.urihttps://hdl.handle.net/11147/11842-
dc.description.abstractEthynylene-bridged perylene diimides (PDIs) with different sized silane groups have been synthesized as a steric blocking group to prevent the formation of non-radiative trap sites, for example, strong H-aggregates and other dimers or excimers. Excited singlet-state exciton dynamics were investigated by time-resolved photoluminescence and ultrafast pump-probe transient absorption spectroscopy. The spectra of the excimer or dimer aggregates formed by the PDIs at high concentrations were also determined. Although the photophysical properties of the bare and shielded PDIs are identical at micromolar concentrations, more shielded PDI2 and PDI3 exhibited resistance to aggregation, retaining higher photoluminescence quantum yield even at 10 mM concentration and in neat films. The PDIs also exhibited high photostability (1 h of continuous excitation), as well as electrochemical stability (multiple cycles with cyclic voltammetry). Prevention of dimer/aggregate formation in this manner will extend the uses of PDIs to a variety of high concentration photonics and optoelectronic applications, such as organic light-emitting diodes, organic photovoltaics, and luminescent solar concentrators.en_US
dc.description.sponsorshipE.A. thanks The Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB-2214-A (Appl. #1059B141800476) who supported this research financially. for time-resolved PL and ultrafast pump-probe TAS. E.A. and C.V. also thank the project support funds of TUBITAK (grant #119F031) for financial support of the synthesis, structural, electrochemical, and optical characterizations of perylene derivatives. A.D. and A.P.M. were supported by the HyperOLED project from the European Unions's Horizon 2020 Research and Innovation Program under grant agreement number 732013.en_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.ispartofJournal of Physical Chemistry Cen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPerylene diimidesen_US
dc.titleSilylethynyl substitution for preventing aggregate formation in perylene diimidesen_US
dc.typeArticleen_US
dc.authorid0000-0002-0083-2574-
dc.authorid0000-0002-1081-0803-
dc.institutionauthorAksoy, Erkan-
dc.institutionauthorVarlıklı, Canan-
dc.departmentİzmir Institute of Technology. Photonicsen_US
dc.identifier.volume125en_US
dc.identifier.issue23en_US
dc.identifier.startpage13041en_US
dc.identifier.endpage13049en_US
dc.identifier.wosWOS:000664312500060en_US
dc.identifier.scopus2-s2.0-85108576036en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1021/acs.jpcc.1c03131-
dc.authorwosidAksoy, Erkan/AAH-5217-2021-
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
crisitem.author.dept04.04. Department of Photonics-
Appears in Collections:Photonics / Fotonik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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