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首页> 外文期刊>Solid State Communications >Cathodoluminescence change of Y2O3 : Eu phosphors by incorporation of Zn ions
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Cathodoluminescence change of Y2O3 : Eu phosphors by incorporation of Zn ions

机译：Y 2 O 3：Eu荧光粉Zn离子的阴极发光变化。

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Zn-doped Y2O3:Eu phosphors have been studied as potential red phosphors for application to field emission displays. Cathodoluminescence intensities of Zn-doped Y2O3:Eu phosphors sintered at 1000 and 1200 degrees C increased compared with Zn-undoped phosphor under relatively low excitation energies. However, when the excitation energies are increased, the intensities of the Zn-doped Y2O3:Eu phosphors varied with the doping amount of Zn ions. Also, it was found that the Zn ions form a solid solution with the lattice Of Y2O3:Eu phosphors when the molar ratio of Zn/(Y+Eu) is less than 0.25. From consideration of defect chemistry and cathodoluminescence results, it is understood that the changes of cathodoluminescence intensities are correlated with both the dead layer of the phosphor and the diffusivity of Zn ions in the phosphor lattice. Cathodoluminescence of the Zn-doped Y2O3:Eu phosphors is increased by cooperation of the Zn ions with the dead layers. (c) 2005 Elsevier Ltd. All rights reserved.
机译：已经研究了掺杂锌的Y2O3：Eu磷光体作为潜在的红色磷光体，用于场发射显示器。在相对较低的激发能下，与未掺杂锌的磷光体相比，在1000和1200℃烧结的掺锌的Y2O3：Eu磷光体的阴极发光强度增加。然而，当激发能增加时，Zn掺杂的Y 2 O 3：Eu磷光体的强度随Zn离子的掺杂量而变化。另外，发现当Zn /（Y + Eu）的摩尔比小于0.25时，Zn离子与Y 2 O 3 ∶Eu荧光体的晶格形成固溶体。从缺陷化学和阴极发光结果的考虑，可以理解，阴极发光强度的变化与磷光体的死层和磷晶格中Zn离子的扩散率都相关。 Zn掺杂的Y2O3：Eu磷光体的阴极发光通过锌离子与死层的配合而增加。 （c）2005 Elsevier Ltd.保留所有权利。

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