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不同形貌及发光性能NaYF_4:Yb/Er上转换材料的制备

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  • Key Words:NaYF4:Yb/Er;;表面活性剂;;水热-溶剂热法;;荧光

  • Abstract:以稀土硝酸盐、氟化钠为原料通过溶剂热法成功制备出了NaYF4:Yb/Er上转换材料,探索3种不同的表面活性剂及F-浓度对产物形貌及发光性能的影响。通过扫描电镜、透射电镜、X射线衍射和发光光谱对产物的形貌、物相结构及荧光性能进行表征。结果表明,加入不同的表面活性剂可以得到不同形貌的产物;在发光性能上,加入十二烷基硫酸钠的产物发光效果好。此外,随着NaF加入量增加,产物的晶相由立方相转变为立方相和六方相的混合相,当F-和Ln3+的物质的量的比为8∶1时形成六方相。

  • Volume:v.35;No.147

  • Issue:02

  • Translation or Not:no

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