Sol-gel preparation and luminescence properties of BaMgAl10O17:Eu2+ phosphors
Journal
Journal of Rare Earths
Journal Volume
24
Journal Issue
6
Pages
706-711
Date Issued
2006
Author(s)
Abstract
The synthesis of BaMgAl10O17: Eu2+ (BAM) phosphors using the sol-gel method and their luminescence properties were reported. The blue-light emitting BAM was synthesized using citric acid and ethylene glycol as chelating materials. Emission of blue-light was obtained from these phosphors. The luminescent intensity increases as the temperature of heat treatment is increased. This study investigated the effects of the molar ratio of ethylene glycol to citric acid (φ value), with respect to the phase formation and luminescence properties of BAM. The variation of the φ value resulted in the change of the sol-gel reaction mechanism and the microstructures of the resultant powders. An increase in φ value leads to an increase in the rate of BAM phase formation. The photoluminescent intensity of the prepared phosphors increases with heating temperatures because of enhanced crystallization.
SDGs
Type
journal article