Journal
JOURNAL OF THE OPTICAL SOCIETY OF KOREA
Volume 16, Issue 4, Pages 414-417Publisher
OPTICAL SOC KOREA
DOI: 10.3807/JOSK.2012.16.4.414
Keywords
Photoluminescence; Glass phosphors; Cerium; Reduction
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Funding
- Ministry of Knowledge Economy (MKE), Republic of Korea [70011104] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The effect of cerium concentration and the addition of Sb2O3 on the light emission of cerium-contained glass were investigated. The glass matrix composition was 20Y(2)O(3)-25Al(2)O(3)-55SiO(2), the CeO2 concentration ranged from 0.05 to 0.5 mol%, and Sb2O3 was added at concentrations of 0.02 to 0.1 mol%. The Ce3+ and Ce4+ 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 Ce3+ ion, was observed under illumination by a UV light at 330 nm. The photoluminescence intensity of Ce3+ had a maximum value at a CeO2 concentration of 0.1 mol%. Adding Sb2O3 decreased the Ce4+ absorption intensity and enhanced the light emission intensity of Ce3+ by about 45%.
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