Radiative properties of Eu2+ in BaGa2S4

A photoluminescence study of the blue-green emitting BaGa2S4:Eu2+ phosphor is reported. Diffuse reflectance, excitation and emission spectra were examined with the aim to enlarge the fundamental knowledge about the emission of the Eu2+ rare earth ion in this lattice. The thermal dependence of the ra...

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Bibliographic Details
Published in:The Journal of physics and chemistry of solids 2005-06, Vol.66 (6), p.1049-1056
Main Authors: Jabbarov, R.B., Chartier, C., Tagiev, B.G., Tagiev, O.B., Musayeva, N.N., Barthou, C., Benalloul, P.
Format: Article
Language:English
Subjects:
A. Chalcogenides
A. Inorganic compounds
Condensed Matter
Condensed matter: electronic structure, electrical, magnetic, and optical properties
D. Luminescence
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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Summary:A photoluminescence study of the blue-green emitting BaGa2S4:Eu2+ phosphor is reported. Diffuse reflectance, excitation and emission spectra were examined with the aim to enlarge the fundamental knowledge about the emission of the Eu2+ rare earth ion in this lattice. The thermal dependence of the radiative properties and the influence of the Eu2+ concentration were investigated. The Stokes shift, the crystal field splitting and the activation energy of the thermal quenching were determined. By combining these results with data available in literature, we discussed the radiative properties of the BaAl2S4:Eu2+ blue phosphor in relation with those determined in this study for the isostructural BaGa2S4:Eu2+ phosphor.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2005.02.003