| Texto completo | |
| Autor(es): |
Pacheco, Jessica Crivelaro
;
Olean-Oliveira, Andre
;
Teixeira, Marcos F. S.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MACROMOLECULAR CHEMISTRY AND PHYSICS; v. 221, n. 18, p. 10-pg., 2020-08-26. |
| Resumo | |
This work describes the photoelectrochemical properties of devices coated with poly(azo-Bismarck Brown R) and the nanocomposite poly(azo-Bismarck Brown R)/reduced graphene oxide. Chronoamperometric methods with pulsed light are applied to the polymer surfaces of poly(azo-Bismarck R) and poly(azo-Bismarck Brown R)/rGO nanocomposites at two applied potentials (corresponding to the reduced and oxidized polymer forms) to obtain information on the photocurrent in a short response time. The results indicate that the photoactivity of the nanomaterial depends on the oxidation state of the azo-polymer and its chemical structure. The carrier mobility of the material is affected by the applied potential profile and consequently by the isomerism of the polymer backbone. This behavior explains the photoelectrochemical performance of the nanocomposite material. The photoresponsiveness of the semiconducting hybrid material with light-switchable conductance is promising for applications in photoelectrochemical switches and molecular switching devices. (AU) | |
| Processo FAPESP: | 16/09017-1 - Estudo da formação de filmes de complexos metálicos a base de schiff |
| Beneficiário: | Marcos Fernando de Souza Teixeira |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| 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: | 17/25944-2 - Estudo e desenvolvimento de uma célula solar sensibilizada com Poli(azo- Bismarck Brown r) |
| Beneficiário: | Jessica Crivelaro Pacheco |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |