Coprecipitation Synthesis and Photoluminescence of BaMgAl10O17:Eu2+ Phosphor for PDP Application
Single phase of Ba1-xEuxMgAl10O17(0.02≤x≤0.14) phosphors were first successfully prepared by coprecipitation method at 1300°C, which is 300°C lower than the temperature of solid-state method. Different precipitants were used to evaluate the changes in the morphology and luminance properties. When using (NH4)2CO3 as precipitant, the phosphor particle without agglomeration has a more regular shape and uniform distribution. Their photoluminescence was investigated under UV and VUV region, respectively. The emission spectrum excited by 254nm or 147nm showed a characteristic wide band with the peak at about 450nm. The synthesized phosphor showed much stronger emission intensity than that prepared by solid-state method, especially using (NH4)2CO3 as precipitant, it indicated that this novel process will be great potential in practical use.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Z. H. Zhang and Y. H. Wang, "Coprecipitation Synthesis and Photoluminescence of BaMgAl10O17:Eu2+ Phosphor for PDP Application", Materials Science Forum, Vols. 475-479, pp. 1701-1704, 2005