Aggregation-induced emission and temperature-dependent luminescence of potassium perylenetetracarboxylate

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dc.creatorSamuel Brum Martins
dc.creatorEverton Pereira de Andrade
dc.creatorSubodh Kumar Gautam
dc.creatorOlivier Plantevin
dc.creatorLuiz Alberto Cury
dc.creatorÂngelo Malachias de Souza
dc.creatorGustavo de Almeida Magalhães Sáfar
dc.date.accessioned2023-06-05T15:08:56Z
dc.date.accessioned2025-09-09T00:06:41Z
dc.date.available2023-06-05T15:08:56Z
dc.date.issued2021
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doihttps://doi.org/10.1007/s10895-021-02810-4
dc.identifier.issn1573-4994
dc.identifier.urihttps://hdl.handle.net/1843/54502
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Fluorescence
dc.rightsAcesso Restrito
dc.subjectFotoluminescência
dc.subject.otherAggregation induced emission
dc.subject.otherTemperature dependence
dc.titleAggregation-induced emission and temperature-dependent luminescence of potassium perylenetetracarboxylate
dc.typeArtigo de periódico
local.citation.epage1862
local.citation.issue6
local.citation.spage1855
local.citation.volume31
local.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.
local.identifier.orcidhttps://orcid.org/0000-0002-6655-9558
local.identifier.orcidhttps://orcid.org/0000-0002-3686-2732
local.identifier.orcidhttps://orcid.org/0000-0002-6041-3451
local.identifier.orcidhttps://orcid.org/0000-0002-6131-181X
local.identifier.orcidhttps://orcid.org/0000-0002-0763-4431
local.identifier.orcidhttps://orcid.org/0000-0002-8703-4283
local.identifier.orcidhttps://orcid.org/0000-0003-1354-3138
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s10895-021-02810-4

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