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发明公开
CN103102880A 单谱带上转换发光纳米晶及其制备方法 无效 - 撤回

单谱带上转换发光纳米晶及其制备方法
摘要：
本发明公布一种具有单谱带上转换发光特性的稀土离子掺杂的Na3MF7(M=Zr, Hf)纳米晶及其制备方法，属于无机发光材料领域。以氯氧化锆或氯氧化铪和稀土离子盐为原料，在乙醇、油酸和油胺混合溶剂中，于90～130℃温度下进行溶剂热反应，反应时间为1～24小时，结果获得单分散、尺度和形状均一的Yb/Er或Yb/Tm共掺杂的Na3MF7(M=Zr或Hf)纳米立方块。在980纳米激光照射下， Yb/Er共掺杂的纳米晶可发出明亮的红光，Yb/Tm共掺杂的纳米晶可发出强的近红外光。该类材料可望在太阳电池和生物标记领域得到广泛应用。
摘要（英）：

The invention discloses a rare earth ion doped Na3MF7 (M=Zr, Hf) nanocrystalline with a simple spectrum band up-conversion luminescence characteristic and a preparation method thereof, and belongs to the field of inorganic luminescent materials. The preparation method comprises the following step of: based on zirconium oxychloride or hafnium oxychloride and rare earth ion salt as raw materials, performing solvothermal reaction at 90-130 DEG C in a mixed solvent of ethanol, oleic acid and oleylamine for 1-24 hours to obtain monodisperse Yb/Er or Yb/Tm co-doped Na3MF7 (M=Zr or Hf) nano cubic blocks in uniform dimension and shape. Under radiation of 980 nanometer laser, Yb/Er co-doped nanocrystalline can emit bright red light and Yb/Tm co-doped nanocrystalline can emit strong near-infrared light. The material is expected to be widely applied to the field of solar battery and biomarker.

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