Luminescence enhancement of Eu{sup 2+}, Ce{sup 3+} co-doped Ba{sub 3}Si{sub 5}O{sub 13-{delta}}N{sub {delta}} phosphors

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.12.011· OSTI ID:21372529

Ruili, Zhang ^[1]; Maeda, Tomonori; Maruta, Ryosuke; Kusaka, Sho ^[2]; Bingjun, Ding ^[1]; Murai, Kei-ichiro ^[3]; Moriga, Toshihiro ^[2]

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1. State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Shaanxi 710049 (China)
2. Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, University of Tokushima, 2-1 Minami-Josanjima, Tokushima 770-8506 (Japan)
3. Department of Chemical Science and Technology, Graduate School of Advanced Technology and Science, The University of Tokushima, 2-1 Minami-Josanjima, Tokushima 770-8506 (Japan)

Host lattice Ba{sub 3}Si{sub 5}O{sub 13-{delta}}N{sub {delta}} oxonitridosilicates have been synthesized by the traditional solid state reaction method. The lattice structure is based on layers of vertex-linked SiO{sub 4} tetrahedrons and Ba{sup 2+} ions, where each Ba{sup 2+} ion is coordinated by eight oxygen atoms forming distorted square antiprisms. Under an excitation wavelength of 365 nm, Ba{sub 3}Si{sub 5}O{sub 13-{delta}}N{sub {delta}}:Eu{sup 2+} and Ba{sub 3}Si{sub 5}O{sub 13-{delta}}N{sub {delta}}:Eu{sup 2+},Ce{sup 3+} show broad emission bands from about 400-620 nm, with maxima at about 480 nm and half-peak width of around 130 nm. The emission intensity is strongly enhanced by co-doping Ce{sup 3+} ions into the Ba{sub 3}Si{sub 5}O{sub 13-{delta}}N{sub {delta}}:Eu{sup 2+} phosphor, which could be explained by energy transfer. The excitation band from the near UV to the blue light region confirms the possibility that Ba{sub 3}Si{sub 5}O{sub 13-{delta}}N{sub {delta}}:Eu{sup 2+}, Ce{sup 3+} could be used as a phosphor for white LEDs. - Graphical abstract: Emission spectra for Ba{sub 3(1-x-y)}Si{sub 5}O{sub 13-{delta}}N{sub {delta}}/xEu{sup 2+},yCe{sup 3+} (0<=x<=2%,0<=y<=2%) under the excitation wavelength of 365 nm.

• OSTI ID: 21372529
• Journal Information: Journal of Solid State Chemistry, Vol. 183, Issue 3; Other Information: DOI: 10.1016/j.jssc.2009.12.011; PII: S0022-4596(09)00574-X; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
BARIUM IONS
CERIUM IONS
DOPED MATERIALS
EMISSION SPECTRA
EUROPIUM IONS
EXCITATION
LUMINESCENCE
NITRIDES
PHOSPHORS
SILICATES
SILICON OXIDES
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHARGED PARTICLES
EMISSION
ENERGY-LEVEL TRANSITIONS
IONS
MATERIALS
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTON EMISSION
PNICTIDES
SILICON COMPOUNDS
SPECTRA