| Full text | |
| Author(s): |
Total Authors: 3
|
| Affiliation: | [1] Sao Paulo State Univ UNESP, Sch Sci, Postgrad Program Mat Sci & Technol POSMAT, BR-17033360 Bauru - Brazil
[2] Sao Paulo State Univ UNESP, Campus Itapeva, BR-18409010 Itapeva - Brazil
[3] Sao Paulo State Univ UNESP, Sch Sci, Dept Phys, BR-17033360 Bauru - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | Journal of Physical Chemistry B; v. 123, n. 6, p. 1248-1255, FEB 14 2019. |
| Web of Science Citations: | 1 |
| Abstract | |
Melanins are natural pigments with promising bioelectronic applications. Among their unique properties, the existence of a persistent paramagnetic signal can be considered one of the most intriguing and controversial features. Additionally, the possible influence of such centers on charge transport accentuates the need for a better understanding of their origin and specific characteristics. In this report, electron paramagnetic resonance spectra of melanin samples obtained at different experimental conditions were systematically studied. From the fitting procedure, three distinct resonant lines are proposed, two associated with carbon-centered radicals and one with semiquinone free radicals. (AU) | |
| FAPESP's process: | 12/03116-7 - Simulation of electronic and optical properties of organic materials |
| Grantee: | Augusto Batagin Neto |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| 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 |
| 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 |