| Full text | |
| Author(s): |
Borges, Fernanda Hediger
[1]
;
Caixeta, Fabio Jose
[1]
;
Pereira, Rafael Ramiro
[1]
;
de Oliveira, Silvana Ruella
[1]
;
Ferreira, Rute A. S.
[2]
;
Goncalves, Rogeria Rocha
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Sao Paulo, Dept Quim, Lab Mat Luminescentes Micro & Nanoestruturados Ma, Sao Paulo, SP - Brazil
[2] Univ Aveiro, CICECO Aveiro Inst Mat, Dept Phys, Phantam G, Aveiro - Portugal
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | RSC ADVANCES; v. 10, n. 29, p. 16917-16927, MAY 4 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
We report the synthesis of a Y3TaO7 solid solution containing a high Eu3+ concentration (from 7 up to 50 mol%) and investigate how Eu3+ influences the Y3TaO7 crystallization process. To this end, we evaluate the Y3TaO7 structural features and photoluminescence properties after Eu3+ introduction into the Y3TaO7 lattice. The higher the Eu3+ ion concentration, the more stable the crystallization process of the Y3TaO7 phase seems to be. The Eu3+-containing Y3TaO7 displays intense orange-reddish, broad band emission because Eu3+ occupies different symmetry sites in the host and causes inhomogeneous broadening. Eu3+ emission quenching due to Eu3+ concentration is negligible up to 30 mol% and absolute quantum yield values of up to nearly 30% were obtained, making Eu3+-containing Y3TaO7 interesting materials for application as high-intensity emitters in photonics. (AU) | |
| FAPESP's process: | 18/04587-0 - Yttrium Tantalates and Niobates rare earth ions doped with emission in the visible and near infrared region for photonics applications |
| Grantee: | Fernanda Hediger Borges Ribeiro |
| Support Opportunities: | Scholarships abroad - Research Internship - Master's degree |
| FAPESP's process: | 17/11301-2 - Rare earth doped micro and nanostructures luminescent materials: properties and applications |
| Grantee: | Rogéria Rocha Gonçalves |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/10424-3 - Luminescent rare earth tantalate and niobate: synthesis, properties and applications in photonics |
| Grantee: | Fernanda Hediger Borges Ribeiro |
| Support Opportunities: | Scholarships in Brazil - Master |