Melanin thin-films: a perspective on optical and electrical properties

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorSwansea University-
Autor(es): dc.contributorUniversity of Queensland-
Autor(es): dc.creatorPaulin, J. V.-
Autor(es): dc.creatorColeone, A. P.-
Autor(es): dc.creatorBatagin-Neto, A.-
Autor(es): dc.creatorBurwell, G.-
Autor(es): dc.creatorMeredith, P.-
Autor(es): dc.creatorGraeff, C. F.O.-
Autor(es): dc.creatorMostert, A. B.-
Data de aceite: dc.date.accessioned2025-08-21T16:46:17Z-
Data de disponibilização: dc.date.available2025-08-21T16:46:17Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2021-07-14-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d1tc01440d-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229137-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229137-
Descrição: dc.descriptionMelanins are an essential natural pigment found throughout nature. Due to their inherent biocompatibility, optical and electronic properties, the melanins are attracting attention as model materials for sustainable organic optoelectronic and bioelectronic applications. Standard melanin is notoriously insoluble, which complicates processability considerably. Hence, the creation of synthetic derivatives that have similar optical-electronic properties but with increased solubility are avenues of active investigation. In this work, we investigate soluble non-functionalised (NF) and sulfonated (S) melanin derivatives. So far, these new synthetic derivatives’ optical and electrical properties have not been explored in full, which would allow their effective application in optoelectronic devices. Our optical results suggest that these materials have high refractive indices and also high dispersion and chromatic aberration. In addition, no significant differences in NF-melanin's charge transport deposited from pure water or aqueous ammonia solution were observed, and S-melanin's functional groups did not affect the hydration-dependence conductivity, only its sensitivity to environmental humidity. The similarities and differences in spectra and values comparing NF and S-melanin are discussed based on their structural differences.-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Postgraduate Program in Science and Technology of Materials (POSMAT)-
Descrição: dc.descriptionSwansea University Department of Physics, Singleton Park-
Descrição: dc.descriptionSão Paulo State University (UNESP) Campus of Itapeva-
Descrição: dc.descriptionSchool of Mathematics and Physics University of Queensland, St Lucia Campus-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics-
Descrição: dc.descriptionSwansea University Department of Chemistry, Singleton Park-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Postgraduate Program in Science and Technology of Materials (POSMAT)-
Descrição: dc.descriptionSão Paulo State University (UNESP) Campus of Itapeva-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Sciences Department of Physics-
Formato: dc.format8345-8358-
Idioma: dc.languageen-
Relação: dc.relationJournal of Materials Chemistry C-
???dc.source???: dc.sourceScopus-
Título: dc.titleMelanin thin-films: a perspective on optical and electrical properties-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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