| Texto completo | |
| Autor(es): |
Lovisa, L. X.
[1]
;
Araujo, V. D.
[2]
;
Tranquilin, R. L.
[3]
;
Longo, E.
[3]
;
Li, M. S.
[4]
;
Paskocimas, C. A.
[1]
;
Bomio, M. R. D.
[1]
;
Motta, F. V.
[1]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Univ Fed Rio Grande do Norte, Dept Engn Mat, BR-59072970 Natal, RN - Brazil
[2] Univ Fed Rural Pernambuco, UACSA, BR-54510000 Cabo De Santo Agostinho, PE - Brazil
[3] Univ Fed Sao Carlos, LIEC, BR-13565905 Sao Carlos, SP - Brazil
[4] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13566590 Sao Carlos, SP - Brazil
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo de Revisão |
| Fonte: | Journal of Alloys and Compounds; v. 674, p. 245-251, JUL 25 2016. |
| Citações Web of Science: | 18 |
| Resumo | |
The search for high efficiency, reliable, low power consumption and environmental friendly materials for white light-emitting diodes has become a proficient field. Single-phase doped materials have been made to solve some of these challenges. Particles with color-tunable emission can be obtained by a combination of some lanthanide ions in the host material. The luminescence properties and crystalline structure of ZrO2 particles co-doped with rare earth ions (RE3+ = Tb3+, Eu3+ and Tm3+) calcined at different temperatures were studied. We aimed to investigate the emission spectrum of the particles in the red, green, and blue regions under UV excitation. The x and y coordination chromaticity - (x = 0.34, y = 0.34) and (x = 0.31, y = 0.34) - presented values close to those of the white color (x = y = 0.33). In conclusion, the ZrO2:RE3+ powers were successfully obtained by the complex polymerization method and are promising candidates for white light -emitting applications. (C) 2016 Elsevier B.V. All rights reserved. (AU) | |
| Processo FAPESP: | 08/57872-1 - Instituto Nacional de Ciências dos Materiais em Nanotecnologia |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| 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 |