Synthesis Study of Lu_3Al_5O_(12)(Ce) Nanoscaled Powder by Co-precipitation
Synthesis Study of Lu_3Al_5O_(12)(Ce) Nanoscaled Powder by Co-precipitation
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发表时间：
2009-06
影响因子：
1.7
通讯作者：
X. Jian
中科院分区：
文献类型：
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作者：
X. Jian
以碳酸氢铵为沉淀物，采用反共沉淀法制备了掺Ce3+的稀土铝石榴石Lu3Al5O12(Ce)荧光粉，并用TG-DTA、FTIR、X射线衍射仪、透射电子显微镜和光致发光等手段对其进行了表征。焙烧温度对所制备的Lu3Al5O12(Ce)粉末的粒度和发光性能有明显的影响，在1000℃下焙烧2 h得到的Lu3Al5O12(Ce)粉末的平均粒径为30nm，在850℃~1200℃的焙烧范围内其光致发光性能最强。
Ce3+-doped Lutetium aluminum garnet Lu3Al5O12 phosphors were prepared by an anti co-precipitation from mixing solution of lutetium,aluminum and cerium nitrates using the ammonium hydrogen carbonate as precipitate,followed by the calcination at low temperatures.TG-DTA,FTIR,XRD,TEM and Photoluminescence were used to characterize the as-prepared phosphors.The calcining temperature has distinctly influence on the particle size and the photoluminescence of the prepared Lu3Al5O12(Ce) powders.The resulted Lu3Al5O12(Ce) powder calcined at 1000℃ for 2h has an average particle size of 30nm.And its photoluminescence is the strongest among the powders calcined in the range from 850℃ to 1200℃.