Synthesis and characterization of BaMgAl10O17:Eu2+ phosphor prepared by homogeneous precipitation |
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作者姓名: | ZhanhuiZhang Jingang Feng Zhiliang Huang |
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作者单位: | School of Materials Science and Engineering, Wuhan Institute of Technolo~, No. 693, Xiongchu Street, Wuhan, Hubei 430073, China |
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基金项目: | This work was supported by the Research Foundation of Education Bureau of Hubei Province, China (Grant No. Q20081509). |
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摘 要: | A homogeneous precipitation process based on urea hydrolysis reaction was exploited to synthesize BaMgAl10O17:Eu2+ phosphor. The process parameters, such as the dosage of urea, the calcination tem- peratures and the concentration of Eu2+, were refined in light of the characterization of the products. The experimental results revealed that pure and well-crystallized BaMgAl10O17:Eu2+ phosphor could be obtained at 1250℃, a much lower temperature than that for traditional solid-state reaction. The as-prepared phosphor particles were small in grain size, regular in morphology, and uniform in size distribution. Because of the high homogeneity of the process, the as-prepared phosphor exhibited stronger emission intensity and higher thermal stability than the sample prepared by solid-state reaction at 1600℃.
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关 键 词: | BaMgAl10O17 均匀沉淀法 荧光粉 制备 合成 表征 尿素用量 焙烧温度 |
收稿时间: | 9 March 2009 |
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