ControlledSynthesisandApplicationofα-Al2O3forLu3Al5O12:Ce3+GreenSphericalPhosphors

被引：7

作者：

李兆

WANG Yongfeng

CAO Jing

机构：

[1] SchoolofMaterialsEngineering,Xi'anAeronauticalUniversity

来源：

JournalofWuhanUniversityofTechnology(MaterialsScience) | 2018年 / 33卷 / 05期

关键词：

alumina particles; hydrothermal-thermolysis; morphology control; cerium doped lutetium aluminum garnet phosphor;

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

Al2O3 powders with different morphologies,namely fibrous,sheet-like,and spherical,were prepared by the hydrothermal-thermolysis method.Subsequently,polycrystalline,transparent cerium doped lutetium aluminum garnet(Lu3Al5O12:Ce3+)green phosphors were synthesized by high temperature solidstate method using commercial lutetium（III）oxide,cerium（III）oxide,and as-prepared Al2O3 powders with different morphologies.The phases,morphologies,and photoluminescent properties of the prepared phosphors were investigated by X-ray diffraction（XRD）,scanning electron microscopy（SEM）,and photoluminescence spectroscopy（PL）.Moreover,the influences of the morphologies ofα-Al2O3 on the types of crystal structure,morphologies,and photoluminescent properties of LuAG:Ce3+green phosphors were investigated.The results indicated that the morphologies and particle sizes of theα-Al2O3 powders could be controlled by the additives and parameters.Notably,the sphericalα-Al2O3 powders with good dispersibility were found to be the excellent base materials of LuAG:Ce3+green phosphors for white light emitting diodes.

引用

页码：1028 / 1031

页数：4

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