Photoluminescence and color tunability of γ-irradiated Tb3+–Sm3+-codoped oxyfluoride aluminoborate glasses

The main goal of this paper is to generate a warm white light through γ-irradiated Tb 3+ /Sm 3+ -codoped oxyfluoride aluminoborate glasses under 387 nm excitation xenon lamp. The transparent Tb 3+ /Sm 3+ -codoped oxyfluoride aluminoborate glass samples were prepared by melt-quenching technique. The...

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Bibliographic Details
Published in:Journal of materials science 2014, Vol.49 (1), p.415-423
Main Authors: Hari Babu, B., Ravi Kanth Kumar, V. V.
Format: Article
Language:English
Subjects:
Aluminum oxide
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chromaticity
Classical Mechanics
Color temperature
Crystallography and Scattering Methods
Emission analysis
Energy transfer
Glass
Irradiation
Light emission
Materials Science
Oxyfluorides
Photoluminescence
Polymer Sciences
Solid Mechanics
White light
Xenon lamps
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Summary:The main goal of this paper is to generate a warm white light through γ-irradiated Tb 3+ /Sm 3+ -codoped oxyfluoride aluminoborate glasses under 387 nm excitation xenon lamp. The transparent Tb 3+ /Sm 3+ -codoped oxyfluoride aluminoborate glass samples were prepared by melt-quenching technique. The energy transfer mechanism between Tb 3+ and Sm 3+ ions with an emphasis on the role of Al 2 O 3 /Al 3+ is systematically studied before and after γ-irradiation. The characteristics of white light emission defined by chromaticity color coordinates and correlated color temperature are evaluated. In the present glass systems, the tuning of cold-to-warm white light as a function of Al 2 O 3 and γ-irradiation is demonstrated.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-013-7720-z