White photoluminescence emission from ZrO2 co-doped with Eu3+, Tb3+ and Tm3+

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]

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

• 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