Structural and optical properties of soluble melanin analogues with enhanced photoluminescence quantum efficiency

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorPaulin, João Vitor-
Autor(es): dc.creatorVeiga, Amanda Garcez-
Autor(es): dc.creatorGarcia-Basabe, Yunier-
Autor(es): dc.creatorRocco, Maria Luiza Miranda-
Autor(es): dc.creatorGraeff, Carlos F.O.-
Data de aceite: dc.date.accessioned2021-03-11T00:56:44Z-
Data de disponibilização: dc.date.available2021-03-11T00:56:44Z-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/pi.5543-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/179624-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/179624-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionProcesso FAPESP: 2013/07296-2-
Descrição: dc.descriptionProcesso FAPESP: 2015/23000-1-
Descrição: dc.descriptionCNPq: 573636/2008-7-
Descrição: dc.descriptionMelanin is a functional material of growing interest for bioelectronics. Several melanin analogues have been employed in order to fully explore its potential; in this work melanin was synthesized using dimethylsulfoxide (DMSO) and O2 under pressure as oxidizing agent. It is shown that the products have similar functional groups and solubility; however, O2 pressure produces more carboxylated structures and improves the synthesis reaction rate. The photoluminescence of all sulfonated melanin analogues was studied. It is shown that the material synthesized in DMSO has photoluminescence in the visible region (487 nm) with a quantum yield of (2.12 ± 0.02)%. This good quantum yield compared to natural and synthetic melanin may open new perspectives for its use in optoelectronics applications. The origin of this effect is discussed in terms of the polymer structure. © 2018 Society of Chemical Industry.-
Formato: dc.format550-556-
Idioma: dc.languageen-
Relação: dc.relationPolymer International-
Relação: dc.relation0,680-
Relação: dc.relation0,680-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectDMSO-
Palavras-chave: dc.subjectmelanin-
Palavras-chave: dc.subjectO2 pressure-
Palavras-chave: dc.subjectoptoelectronics-
Palavras-chave: dc.subjectphotoluminescence-
Título: dc.titleStructural and optical properties of soluble melanin analogues with enhanced photoluminescence quantum efficiency-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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