High-Temperature Spray Pyrolysis of Y 2 O 3 : Eu3 + Red Phosphor
High-Temperature Spray Pyrolysis of Y 2 O 3 : Eu3 + Red Phosphor
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DOI：
10.1149/1.1633692
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发表时间：
2004-02
影响因子：
--
通讯作者：
Y. Shimomura;N. Kijima
中科院分区：
文献类型：
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作者：
Y. Shimomura;N. Kijima
为了提高喷雾热解法合成的Y2 O3：Eu 3 +红色荧光粉的亮度，提高了炉内温度，延长了停留时间。荧光粉的亮度对反应温度和停留时间的依赖性表现出局部最大值。当炉温度太高和/或停留时间太长时，由于产生杂质Y 4Al 2 O 9，亮度降低。铝来源于氧化铝反应管。在本研究中获得的磷光体的最大亮度是由固态反应制成的商业磷光体的亮度的75%。
For luminance improvement of Y 2 O 3 :Eu 3 + red phosphor synthesized by spray pyrolysis method without post-heating, the furnace temperature was raised and residence time was extended. Dependence of luminance of the phosphor on reaction temperature and residence time showed a local maximum. When furnace temperature was too high, and/or the residence time was too long, the luminance was reduced because an impurity, Y 4 Al 2 O 9 , was generated. The aluminum originated from the alumina reactor tube. The maximum luminance of the phosphor obtained in this study was 75% of the luminance of a commercial phosphor made by solid-state reaction.