Synthesis, Luminescence, and Effect of Heat Treatment on the Properties of Y3Al5O12:Ce Phosphor

被引：10
|
作者：
Zhang, K. [1 ]
Hu, W. B. [1 ]
Wu, Y. T. [1 ]
Liu, H. Z. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
INORGANIC MATERIALS | 2008年 / 44卷 / 11期
关键词：
D O I：
10.1134/S0020168508110149
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
YAG:Ce nanosized spherical precursors were synthesized by coprecipitation using ammonium hydrogen carbonate as precipitant. Composition, phase transition, morphologies, and luminescence properties of the powders during calcination were studied. The precursors directly convert to pure YAG structure at about 900 degrees C. The mean size of precursors is about 100 nm, and the grain size increases with increase of calcination temperature. When calcined above 1400 degrees C, the grain size comes into a micrometer. With increase of calcination temperature, the luminescent intensity increases, and the emission hand shows a redshift, while the lifetime increases.
引用
收藏
页码：1218 / 1223
页数：6
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