Synthesis and photoluminescence properties of novel red-emitting Ca14Mg2(SiO4)8:Eu3+/Sm3+ phosphors

被引：5

作者：

孙文芝 ^{[1
,2
]}

庞然 ^{[1
]}

李海锋 ^{[1
,2
]}

贾永雷 ^{[1
,2
]}

张粟 ^{[1
]}

姜丽宏 ^{[1
]}

李成宇 ^{[1
]}

机构：

[1] State key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences

[2] University of Chinese Academy of Sciences

来源：

Journal of Rare Earths | 2015年 / 33卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Ca14Mg2(SiO4)8:Eu3+/Sm3+; red-emitting phosphors; energy transfer; rare earths;

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

Novel red-emitting Eu3+, Sm3+ singly doped and co-doped Ca14Mg2(SiO 4)8 phosphors were prepared by conventional solidstate reaction. Powder X-ray diffraction patterns were employed to confirm phase purity. Ca14Mg2(SiO 4)8:Eu3+ phosphors exhibited intense red emission under 394 nm excitation and Ca14Mg2(SiO 4)8:Sm3+ phosphors, excited at 405 nm, also showed strong red emitting at 602 nm. The concentration quenching mechanism of Ca14Mg2(SiO 4)8:Eu3+ was dipole-dipole interaction, while that of Ca14Mg2(SiO 4)8:Sm3+ was energy migration among nearest neighbor ions. The results indicated that Ca14Mg2(SiO 4)8:Eu3+ and Ca314Mg2(SiO 4)8:Sm+ were promising red-emitting phosphors for WLEDs. Meanwhile, the effect of co-doping Sm3+ ions on photoluminescence properties of Ca14Mg2(SiO 4)8:Eu3+ was studied and energy transfer from Sm3+ to Eu3+ was discovered in Eu3+, Sm3+ co-doped phosphors.

引用

页码：814 / 819

页数：6

共 8 条

[1] Synthesis,structural and optical properties of SrZrO3:Eu3+ phosphor[J]. Sheetal,V.B.Taxak,Rajni Arora,Dayawati,S.P.Khatkar.Journal of Rare Earths. 2014(04)
[2] Synthesis and luminescent properties of Eu3+doped Y2WO6 nanophosphors[J]. 郝若男,孟庆裕,刘威,刘宏亮.Journal of Rare Earths. 2013(09)
[3] Reddish orange long lasting phosphorescence of Sm3+ in Sr2ZnSi2O7:Sm3+ phosphors
张迎盈
庞然
李成宇
臧春雨
苏锵
[J]. JournalofRareEarths, 2010, 28 (05) : 705 - 708
[4] Luminescent properties and energy transfer of Sr 3 La（PO 4 ） 3 :Sm 3+ , Eu 3+ for white LEDs[J] . Zhijun Wang,Shuqin Lou,Panlai Li.Journal of Alloys and Compounds . 2014
[5] Optical absorption and photoluminescence in Sm 3+ - and Eu 3+ -doped rare-earth borate glasses[J] . Hai Lin,Dianlai Yang,Guishan Liu,Tiecheng Ma,Bin Zhai,Qingda An,Jiayou Yu,Xiaojun Wang,Xingren Liu,Edwin Yue-Bun Pun.Journal of Luminescence . 2004 (1)
[6] Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides[J] . R. D. Shannon.Acta Cryst A . 1976 (Pt 5)
[7] Characterization of energy transfer interac-tions between rare earth ions. van Uitert L G. Journal of the Electrochemical Society . 1967
[8] Size-Dependent Chromaticity in YBO3:Eu Nanocrystals:? Correlation with Microstructure and Site Symmetry. Zhenggui Wei,Lingdong Sun,Chunsheng Liao,Jialu Yin,Xiaocheng Jiang,Chunhua Yan,Shaozhe Lü. Journal of Physics . 2002

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