Sol-gel preparation and characterizations of europium-ion doped barium magnesium aluminate
Journal
Key Engineering Materials
Journal Volume
317-318
Pages
93-96
Date Issued
2006
Author(s)
Abstract
The photoluminescent properties of BaMgAl 10O 17: Eu 2+ synthesized via a sol-gel process employing citric acid (CA) and ethylene glycol (EG) were investigated in this study. The photoluminescence intensity of Eu 2+ emission increased with increase in the doping concentration of Eu 2+ up to 15 at %. The photoluminescence intensity of BaMgAl 10O 17: Eu 2+ also varied with the EG: CA ratio. SEM investigation indicates that the sol-gel derived particles exhibited an irregular shape. The EPR studies showed that Eu 2+ ions occupied the sites with non-cubic symmetry in the prepared phosphors.
Subjects
Barium magnesium aluminate
EPR
Phosphors
Sol-gel
Type
conference paper