Single-crystalline films of Ce-doped YAG and LuAG phosphors: advantages over bulk crystals analogues
Single-crystalline films of Ce-doped YAG and LuAG phosphors: advantages over bulk crystals analogues
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DOI：
10.1016/j.jlumin.2004.12.002
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发表时间：
2005-08
影响因子：
3.6
通讯作者：
Y. Zorenko;V. Gorbenko;I. Konstankevych;A. Voloshinovskii;G. Stryganyuk;V. Mikhailin;V. Kolobanov
中科院分区：
文献类型：
--
作者：
Y. Zorenko;V. Gorbenko;I. Konstankevych;A. Voloshinovskii;G. Stryganyuk;V. Mikhailin;V. Kolobanov
分析了基于Y3 Al 5 O 12：Ce（YAG：Ce）和Lu 3Al 5 O 12：Ce（LuAG：Ce）石榴石单晶薄膜（SCF）的荧光粉的发光特性，并与单晶（SC）类似物进行了比较。结果表明，YAG：Ce和LuAG：Ce自聚焦荧光体与SC相比发光性能的主要特点是由YAl ~（3+）和LuAl ~（3+）的反位缺陷（AD）浓度极低决定的。基于YAG：Ce和LuAG：Ce SCF的磷光体的优点是由于在这些SCF中不存在用于耗散与AD和空位型缺陷相关的激发能量的额外通道。
Luminescent properties of phosphors based on single-crystalline films (SCF) of Y3Al5O12:Ce (YAG:Ce) and Lu3Al5O12:Ce (LuAG:Ce) garnet have been analyzed in comparison with single-crystal (SC) analogues. It has been shown that the main peculiarity of luminescent properties of YAG:Ce and LuAG:Ce SCF as compared to SC is determined by the extremely low concentration of YAl3+and LuAl3+antisite defects (AD) in SCF. The advantages of phosphors based on YAG:Ce and LuAG:Ce SCF are caused by the absence in these SCF the additional channels for dissipation of excitation energy connected with AD and vacancy-type defects.