Synthesis of nanocrystalline YVO4:Eu red emission phosphor with high fluorescence intensity by hydrothermal method using original vanadium-peroxo-citrate complex
Synthesis of nanocrystalline YVO4:Eu red emission phosphor with high fluorescence intensity by hydrothermal method using original vanadium-peroxo-citrate complex
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DOI：
10.2109/jcersj2.117.273
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发表时间：
2009-03
影响因子：
1.1
通讯作者：
S. Kaowphong;V. Petrykin;S. Thongtem;M. Kakihana
中科院分区：
文献类型：
--
作者：
S. Kaowphong;V. Petrykin;S. Thongtem;M. Kakihana
首次采用过氧柠檬酸钒配合物水热法制备了YVO4:Eu红色发光材料。研究发现，通过改变水热法所用溶液的浓度，可以有效地将粒径控制在60 ~ 400 nm范围内。制备的YVO4:Eu纳米晶粉末在200℃下反应2 h，并在1000℃下进行合成后热处理，其荧光强度可与市场上采用传统固相反应方法合成的最佳YVO4:Eu荧光粉相媲美或更好，且晶粒尺寸大得多。
Vanadium peroxo-citrate complex was used for the first time for synthesis of YVO4:Eu red emission phosphor material by hydrothermal method. It was found that particles size can be efficiently controlled in the range of 60-400 nm by changing concentration of the solution utilized for the hydrothermal process. The nanocrystalline powders of YVO4:Eu prepared at 200°C for 2 h with post-synthesis heat treatment at 1000°C exhibited high fluorescence intensity comparable or better than one of the best commercially available YVO4:Eu phosphor synthesized by conventional solid state reaction method and having much larger grain size.