| Full text | |
| Author(s): |
Bregadiolli, Bruna Andressa
[1]
;
Paulin, Joao Vitor
[2]
;
Albano, Luiz Gustavo Simao
[3]
;
Martins, Lucas Michelao
[1]
;
de Camargo, Davi Henrique Starnini
[3]
;
da Silva-Filho, Luiz Carlos
[2, 4]
;
Bufon, Carlos Cesar Bof
[2, 3]
;
Graeff, Carlos Frederico de Oliveira
[1, 2]
Total Authors: 8
|
| Affiliation: | [1] Sao Paulo State Univ UNESP, Sch Sci, Dept Phys, Bauru, SP - Brazil
[2] Sao Paulo State Univ UNESP, Sch Sci, Postgrad Program Sci & Technol Mat POSMAT, Bauru, SP - Brazil
[3] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, Campinas - Brazil
[4] Brazilian Ctr Res Energy & Mat CNPEM, Sch Sci, Dept Chem, Bauru, SP - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | JOURNAL OF MATERIALS CHEMISTRY C; v. 9, n. 47 NOV 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
Melanin is a natural pigment and is one of the most promising materials in the emerging field of bioelectronics. The low conductivity of this class of materials is a limiting factor to their implementation in electronics. In this work, we have improved the electrical properties of a melanin-like material by combining it with reduced graphene oxide (rGO). Three different concentrations of rGO (5, 10 and 15 wt%) were studied. The composites were structurally (SEM, Raman, XPS, FTIR, and solid-state NMR) and optically (UV-vis and PL) characterized. The electrical properties were investigated through transient current, current-voltage curves and electrochemical impedance under different humidity levels. An improved DC conductivity was found for the 15%rGO@sulfonated melanin composite. The results suggest that, together with sulfonated melanin, it could potentially be suitable for applications in bioelectronics and/or organic electronics. (AU) | |
| FAPESP's process: | 17/07627-0 - Synthesis of conjugated reduced graphene oxide-polythiophene derivatives for application as HTM in perovskite solar cells |
| Grantee: | Bruna Andressa Bregadiolli |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/09235-4 - Synthesis of reduced graphene oxide modified with quinoline derivatives for solar cell applications. |
| Grantee: | Lucas Michelão Martins |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 14/25979-2 - Fabrication and characterization of devices and systems based on hybrid nanomembranes |
| Grantee: | Carlos César Bof Bufon |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 17/25553-3 - Fabrication and characterization of self-rolled up nanomembranes of surface-supported metal-organic frameworks (SURMOFs) for applications in ultracompact electronic devices |
| Grantee: | Luíz Gustavo Simão Albano |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 15/23000-1 - Vertical organic field-effect transistor using dyes of natural origin as active layer |
| Grantee: | João Vitor Paulin |
| Support Opportunities: | Scholarships in Brazil - Doctorate |