✦ LIBER ✦
Thermal Stability Study of BaAl2Si2O8:Eu2+ Phosphor Using Its Polymorphism for Plasma Display Panel Application.
✍ Scribed by Won Bin Im; Yong-Il Kim; Duk Young Jeon
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 10 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
of the title phosphor are prepared by solid state reaction of mixtures of BaCO3, Al2O3, SiO2, and EuF3 fired between 1300 and 1400 °C in a reducing atmosphere for 3 h. As revealed by powder XRD, the hexagonal polymorh crystallizes in the space group P3 and the monoclinic phase in the space group I/2c. Monoclinic samples baked at 500 °C in air for 30 min show the same photoluminescence intensity as the fresh ones, whereas baked hexagonal samples loose its photoluminescence intensity significantly. -(IM, W. B.;