发光二极管用红色荧光粉SrMoO4:Eu3+的制备和发射性质

唐红霞; 吕树臣

doi:10.7498/aps.60.037805

摘要

采用化学共沉淀法制备了适合于紫外、近紫外、蓝光发光二极管(LED)激发的红色荧光粉SrMoO4:Eu3+.研究了样品的晶体结构和发光性质.结果表明:化学共沉淀法合成的SrMoO4:Eu3+荧光粉为四方纯相,其激发光谱包括一个宽带峰和一系列尖峰,峰值位于280 nm(宽带峰中心),395 nm,465 nm,可以被紫外LED和蓝光LED有效激发.在395 nm的激发下,测得发射光谱的强发射峰位于613 nm,对应Eu

关键词:

Abstract

The SrMoO4:Eu3+red phosphors that can be excited effectively by the ultraviolet, near ultraviolet and blue light emitting diode (LED) were prepared by chemical coprecipitation. The crystal structure and luminescent properties of the SrMoO4:Eu3+ phosphors were investigated. The X-ray diffraction patterns showed that the SrMoO4:Eu3+synthesized by the process was a pure phase with tetragonal structure. The excitation spectrum of the SrMoO4:Eu3+red phosphors consisted of a broad band peak and a series of sharp peaks, and since the strong peaks were located at 280 nm (the broad band center), 395 nm and 465 nm, respectively, the phosphor can be excited effectively by the UV LED and Blue LED. The emission spectrum excited by 395 nm showed a strong emission peak at 613 nm, originating from the 5D0→7F2transition of Eu3+ions. The Eu3+ion concentration has great influence on the crystal parameters, the crystal symmetries and the luminescent properties. The influence of different concentrations of doped Eu3+ions on the luminescent intensity of SrMoO4:Eu3+was studied and the optimal doping concentration was found to be 15%.

Keywords:

作者及机构信息

1.
哈尔滨师范大学物理与电子工程学院,哈尔滨 150080

基金项目: 黑龙江省自然科学基金(批准号:A200812),哈尔滨师范大学科技发展预研项目(批准号:08XYG-02)资助的课题.

Authors and contacts

1.
Department ofPhysics and Electronic Engineering Harbin Normal University, Harbin 150080,China

参考文献

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施引文献

[1]	Schlotter P, Schmidt R, Schneider J 1997 Appl. Phys. A 64 417
[2]	Fang Z L, Ye J C, Li X Y 2000 Founctional Material and Devices 6 406
[3]	Sivakumar V, Varadaraju U V 2005 J.Electrochem.Soc. 150 H168
[4]	Cai L Y, Chen X L, Chen X Y, Liu Q L, Lu F C, Wei X D 2009 Chin. Phys. B 18 3555
[5]	Liao Q R, Zhuang W D, Xia T, Liu R H, Hu Y S, Teng X M, Liu Y H 2009 Acta Phys. Sin. 58 2776 (in Chinese) [廖秋荣、庄卫东、夏天、刘荣辉、胡运生、滕晓明、刘元红 2009 58 2776]
[6]	Narendran N, Maliyagoda N, Bierman A, Phsar R M, Overington M 2000 Proc. SPIE 3938 240
[7]	Dalmasso S, Damilano B, Pernot C, Dussaigne A, Byrne D, Grandjean N, Leroux M, Massies J 2002 Phys. Status Solidi A 192 139
[8]	Li P L, Yang Z P, Wang Z J, Guo Q L 2008 Chin. Phys. B 17 1907
[9]	Wang Z J, Li P L, Yang Z P, Guo Q L, Li X 2010 Chin. Phys. B 19 017801
[10]	Yang Z P, Liu Y F, Wang L W, Yu Q M, Xiong Z J, Xu X L 2007 Acta. Phys. Sin. 56 546 (in Chinese) [杨志平、刘玉峰、王利伟、余泉茂、熊志军、徐小岭 2007 56 546]
[11]	Kim J S, Jeon P E,Choi J C, Park H L, Mho S I, Kim G C 2004 Appl. Phys. Lett. 84 293
[12]	Fu G S, Guo Q L, Li P L, Wang Z J, Yang Z P 2009 Chin. Phys. B 18 2068
[13]	Li J, Wang Y H, Dong Q Z, Liu J D 2010 Chin. Phys. B 19 063301
[14]	Wang Z J, Li P L, Wang G, Yang Z P, Guo Q L 2008 Acta Phys. Sin. 57 4575 ( in Chinese)[王志军、李盼来、王刚、杨志平、郭庆林 2008 57 4575]
[15]	Haque M M, Lee H I, Kim D K 2009 Journal of Alloys and Compounds 481 792
[16]	Hu Y S, Zhuang W D, Ye H Q, Wang D H, Zhang S S, Huang X W 2005 Journal of Alloys and Compounds 390 226
[17]	Neeraj S, Kijima N, Cheetham A K 2004 Chem. Phy. Lett. 387 2
[18]	Yu Y, Lü S C, Zhou B B 2006 Acta Phys. Sin. 55 4332 (in Chinese) [俞莹、吕树臣、周百斌 2006 55 4332]
[19]	Ma M X, Zhu D C, Tu M J 2009 Acta Phys. Sin. 58 5826 (in Chinese) [马明星、朱达川、涂铭旌 2009 58 5826]
[20]	Ci Z, Wang Y, Zhang J, Sun Y 2008 Physica B 403 670
[21]	Wang Z L, Liang H B, Gong M L 2007 Journal of Alloys and Compounds 432 308
[22]	Li X, Yang Z P, Guan L, Guo Q L, Huai S F, Li P L 2007 J. Rare Earths. 25 706

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