| Texto completo | |
| Autor(es): |
Paulin, J. V.
[1, 2]
;
Coleone, A. P.
[1]
;
Batagin-Neto, A.
[3, 1]
;
Burwell, G.
[2]
;
Meredith, P.
[2, 4]
;
Graeff, C. F. O.
[5, 1]
;
Mostert, A. B.
[6]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ UNESP, Sch Sci, Postgrad Program Sci & Technol Mat POSMAT, Bauru, SP - Brazil
[2] Swansea Univ, Dept Phys, Singleton Pk, Swansea SA2 8PP, W Glam - Wales
[3] Sao Paulo State Univ UNESP, Campus Itapeva, Itapeva - Brazil
[4] Univ Queensland, Sch Math & Phys, St Lucia Campus, Brisbane, Qld 4072 - Australia
[5] Sao Paulo State Univ UNESP, Sch Sci, Dept Phys, Bauru, SP - Brazil
[6] Swansea Univ, Dept Chem, Singleton Pk, Swansea SA2 8PP, W Glam - Wales
Número total de Afiliações: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF MATERIALS CHEMISTRY C; v. 9, n. 26, p. 8345-8358, JUL 14 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Melanins 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. (AU) | |
| Processo FAPESP: | 12/03116-7 - Simulação de propriedades ópticas e eletrônicas de materiais orgânicos |
| Beneficiário: | Augusto Batagin Neto |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 15/23000-1 - Transistores orgânicos de efeito de campo baseado em arquitetura vertical utilizando corantes de origem natural como camada ativa |
| Beneficiário: | João Vitor Paulin |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 18/02411-1 - Sistemas de injeção de prótons baseados em derivados de melanina |
| Beneficiário: | João Vitor Paulin |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado |