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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/54502
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dc.creatorSamuel Brum Martinspt_BR
dc.creatorEverton Pereira de Andradept_BR
dc.creatorSubodh Kumar Gautampt_BR
dc.creatorOlivier Plantevinpt_BR
dc.creatorLuiz Alberto Curypt_BR
dc.creatorÂngelo Malachias de Souzapt_BR
dc.creatorGustavo de Almeida Magalhães Sáfarpt_BR
dc.date.accessioned2023-06-05T15:08:56Z-
dc.date.available2023-06-05T15:08:56Z-
dc.date.issued2021-
dc.citation.volume31pt_BR
dc.citation.issue6pt_BR
dc.citation.spage1855pt_BR
dc.citation.epage1862pt_BR
dc.identifier.doihttps://doi.org/10.1007/s10895-021-02810-4pt_BR
dc.identifier.issn1573-4994pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/54502-
dc.description.resumoInvestigation of temperature-dependent photoluminescent properties of potassium perylene-3,4,9,10-tetracarboxylate (K4PTC), a molecule with no internal rotational degrees of freedom, shows aggregation-induced enhanced emission at room temperature. The different excitonic emission processes are dependent of temperature, some of which quenches in an intermediate temperature range (from 50 to 150 K). The exciton excited states switching phenomenon from "dark" to "bright" states is observed and its explained using Herzberg-Teller selection rule. K4PTC is a molecule comparable to the size of its precursor, perylene-3,4,9,10-tetracarboxylic anhydride (PTCDA) and is highly soluble in water, contrary to PTCDA, which is poorly soluble in most solvents. Powder x-ray diffraction measurements corroborate a lesser degree of ordering of bulk K4PTC compared to bulk PTCDA. The green luminescent molecule could, in principle, be used as a biomarker, or in photodynamic therapy, if further studies show relatively low toxicity.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Fluorescence-
dc.rightsAcesso Restritopt_BR
dc.subjectAggregation induced emissionpt_BR
dc.subjectTemperature dependencept_BR
dc.subject.otherFotoluminescênciapt_BR
dc.titleAggregation-induced emission and temperature-dependent luminescence of potassium perylenetetracarboxylatept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://link.springer.com/article/10.1007/s10895-021-02810-4pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6655-9558pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3686-2732pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6041-3451pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6131-181Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-0763-4431pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8703-4283pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1354-3138pt_BR
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