Analysis of green luminescent Tb3+:Ca4GdO(BO3)3 powder phosphor

This paper reports on the emission analysis of a green luminescent Tb3+:Ca4GdO(BO3)3 powder phosphor based on the measurements of excitation, emission and lifetimes. Besides this, we have also observed an intense green emission from this powder phosphor under an UV source. The emission transitions o...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2007-04, Vol.391 (2), p.339-343
Main Authors: VENGALA RAO, B, RAMBABU, U, BUDDHUDU, S
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
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:This paper reports on the emission analysis of a green luminescent Tb3+:Ca4GdO(BO3)3 powder phosphor based on the measurements of excitation, emission and lifetimes. Besides this, we have also observed an intense green emission from this powder phosphor under an UV source. The emission transitions of (5D4- > 7F3,4,5,6) with lambdaexci=257nm have been measured. Particularly, the green emission transition (5D4- > 7F5) at 553nm has been found to be more prominent and intense. Such green strong emission displaying powder phosphor will find applications in the development of coated screens in certain electronic systems. Apart from the emission analysis of this phosphor, XRD, SEM and FTIR studies have also been carried out in order to understand the structural details of it.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2006.10.022