Abstract
The effect of cerium concentration and the addition of Sb<sub>2</sub>O<sub>3</sub>
on the light emission of cerium-contained glass were investigated. The glass matrix composition was
20Y<sub>2</sub>O<sub>3</sub>-25Al<sub>2</sub>O<sub>3</sub>-55SiO<sub>2</sub>, the CeO<sub>2</sub>
concentration ranged from 0.05 to 0.5 mol%, and Sb<sub>2</sub>O<sub>3</sub> was added at
concentrations of 0.02 to 0.1 mol%. The Ce<sup>3+</sup> and
Ce<sup>4+</sup> absorption bands were observed at approximately 330 nm and 240 nm,
respectively. A broad emission band at 400 nm, due to the 4f-5d transition of the
Ce<sup>3+</sup> ion, was observed under illumination by a UV light at 330 nm. The
photoluminescence intensity of Ce<sup>3+</sup> had a maximum value at a
CeO<sub>2</sub> concentration of 0.1 mol%. Adding Sb<sub>2</sub>O<sub>3</sub>
decreased the Ce<sup>4+</sup> absorption intensity and enhanced the light emission
intensity of Ce<sup>3+</sup> by about 45%.
© 2012 Optical Society of Korea
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