| Texto completo | |
| Autor(es): |
Fernandes, Roger Gomes
;
Mattos, Elaine de Andrade
;
da Silva, Victor Murilo Poltronieri
;
van der Heggen, David
;
Smet, Philippe F.
;
Manzani, Danilo
;
Teixeira, Veronica de Carvalho
;
Rodrigues, Lucas Carvalho Veloso
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALIA; v. 38, p. 6-pg., 2024-09-12. |
| Resumo | |
Translucent persistent luminescence glass matrix composites (PeL-GMCs) were successfully obtained for the first time using a pressureless viscous sintering method with silicate glass as the host material. Initially, persistent luminescence microparticles (PeL-MPs) of SrAl2O4: Eu2+; Dy3+ were prepared by microwave-assisted synthesis under a reducing atmosphere. To obtain persistent luminescent glass matrix composites, 1 wt. % of these particles were mixed with soda-lime-silicate glass beads and pressed into pellets. Subsequently, the disk-shaped samples were heat-treated through pressureless viscous sintering. Despite some material porosity, the PeL-GMCs exhibited translucency and prolonged persistent luminescence (similar to 12 min). Additionally, we noted excellent compatibility between the PeL-MPs and the glass host, since no chemical interaction was found, as verified by optical microscopy, energy dispersive X-ray (EDX) mapping analysis and cathodoluminescence (CL) in SEM. Furthermore, the afterglow intensity of the particles was maintained after the preparation of materials. (AU) | |
| Processo FAPESP: | 22/13267-4 - Controle de danos de raios-X e caracterização avançada por radiação Síncrotron em vitrocerâmicas transparente com luminescência persistente |
| Beneficiário: | Roger Gomes Fernandes |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 21/05603-1 - Estudos avançados de espectroscopias ópticas e de raios X para dominar os processos de transferência de carga em materiais luminescentes |
| Beneficiário: | Lucas Carvalho Veloso Rodrigues |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 21/08111-2 - Materiais conversores de luz à base de terras raras: marcadores luminescentes, sensores e amplificadores ópticos |
| Beneficiário: | Hermi Felinto de Brito |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |