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Na_3La_9B_8O_(27):Ln^(3+)(Ln=Eu或Tb)荧光体的制备与发光性能

Preparation and Photoluminescent Properties of Phosphors Na_3La_9B_8O_(27):Ln^(3+)(Ln=Eu or Tb)
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摘要 采用高温固相合成技术、溶胶-凝胶法、助熔剂法制备了Na3La9B8O27:Ln3+(Ln=Eu或Tb)荧光体,确定了固相反应制备该荧光体适宜的组分比例.分别测试、解释了Na3La9B8O27:Eu3+和Na3La9B8O27:Tb3+激发光谱和发射光谱.比较了不同方法制备的荧光体的发光效率,并对产生的差异进行分析和讨论,助熔剂法得到的荧光体发光效率最高. Na3La9B8O27：Ln^3＋ （Ln = Eu or Tb）phosphors have been prepared by solid state reaction, sol-gel process technique and fluxes technique, respectively. The optimal initial ratios have been determined in the solid state reaction process. The excitation and emission spectra of Na3La9B8O27：Ln^3＋ and Na3La9B8O27 ： Tb3 ＋ are measured and explained. The different photoluminescent efficiency of the various prepared phosphors is studied and discussed. The phosphors fabricated by fluxes technique have the most luminescent efficiency.
作者 张鲁宁 李志华
机构地区 山东师范大学化学化工与材料科学学院
出处 《华东交通大学学报》 2008年第4期80-84,99,共6页 Journal of East China Jiaotong University
基金 国家自然科学基金资助项目(50702031)
关键词 Na3La9B8O27:Ln^3+(Ln=Eu或Tb) 高温固相合成 溶胶-凝胶法 助熔剂 Na3La9B8O27：Ln^3＋ （Ln = Eu or Tb） solid state reaction sol-gel method fluxes
分类号 O614.33 [理学—无机化学] O612.6 [理学—无机化学]
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参考文献24

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华东交通大学学报
2008年 第4期

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