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NaLn_(4-x)(SiO_4)_3F∶xRE^(3+)(Ln=La,Gd;RE=Tb,Dy,Sm,Tm)荧光材料的发光性能 被引量:4

Luminescence Characterization in The Phosphors of NaLn_(4-x)(SiO_4)_3 F∶xRE^(3+) (Ln =La,Gd;RE =Tb,Dy,Sm,Tm)
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摘要 利用简单的高温固相法合成稀土离子掺杂的NaLn4-x(SiO4)3F∶xRE3+(Ln=La,Gd;RE=Tb,Dy,Sm,Tm)系列荧光粉,利用X射线粉末衍射仪和荧光分光光度计分别测试其物相结构和荧光性能。结果表明,所合成样品均为纯的六方晶系结构,在紫外光激发下所合成样品均表现出所掺杂稀土离子的f-f特征能级跃迁,Tb3+、Dy3+、Sm3+和Tm3+等激活离子分别发出蓝绿色、白色、橙色以及蓝色等荧光发射。 A series of NaLn4- x( SiO4)3F∶ xRE3 +( Ln = La,Gd; RE = Tb,Dy,Sm,Tm) phosphors were synthesized by the conventional solid-state reaction at 950 ℃ for 2 h. The samples were characterized by X-ray diffraction( XRD) and photoluminescence( PL) spectra. The experimental results indicate that all the obtained-samples are pure hexagonal phase. Under UV light excitation,the doped rare earth ions( Tb3 +,Dy3 +,Sm3 +and Tm3 +) phosphor give blue-green,white,orange,and blue emission,respectively.
出处 《发光学报》 EI CAS CSCD 北大核心 2013年第11期1462-1468,共7页 Chinese Journal of Luminescence
基金 国家自然科学基金(21161004) 广西自然科学基金(2011GXNSFA018048)资助项目
关键词 氟氧化物基质 稀土离子 荧光粉 高温固相合成 oxyfluoride system rare earth ion phosphor solid-state method
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参考文献26

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共引文献4

同被引文献28

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