Co-precipitation synthesis and photoluminescence properties of (Ca(1-x-y),Ln(y))MoO(4): xEu(3+) (Ln = Y, Gd) red phosphors

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	Co-precipitation synthesis and photoluminescence properties of (Ca(1-x-y),Ln(y))MoO(4): xEu(3+) (Ln = Y, Gd) red phosphors
	Y. L. Yang; X. M. Li; W. L. Feng; W. L. Li; C. Y. Tao
	2010
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	505 期号:1 页码:239-242
摘要	(Ca(1-x-y),Ln(y))MoO(4): xEu(3+) (Ln = Y, Gd) red phosphors were prepared by co-precipitation method with NH(4)HCO(3)-NH(3)center dot H(2)O system as the precipitating agent. X-ray diffraction (XRD), Fourier transform infrared spectrometer (FT-IR), and energy-dispersive X-ray spectrometer (EDS) were used to characterize the structure and composition of the phosphors. The synthesized (Ca(1-x-y),Ln(y))MoO(4): xEu(3+) have scheelite structure with pure phase. FT-IR spectra show strong absorption peaks between 914 and 730 cm(-1) which are assigned to the vibration of O-Mo-O in MoO(4)(2-) tetrahedron. The EDS analysis reveals that the red phosphors have been successfully prepared by co-precipitation method according to theoretic ratio. Photoluminescence spectra show a red emission around 614 with 394 and 464 nm excitation, which is match well with the output wavelength of commercial ultraviolet and blue LED chips. The luminescent intensity of (Ca,Ln)MoO(4): Eu(3+) is obviously higher than that of CaMoO(4): xEu(3+). Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
部门归属	[yang yu-ling; li xue-ming; feng wen-lin; li wu-lin; tao chuan-yi] chongqing univ, coll chem & chem engn, chongqing 400044, peoples r china. [feng wen-lin] chongqing univ technol, dept appl phys, chongqing 400054, peoples r china. [feng wen-lin] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;li, xm (reprint author), chongqing univ, coll chem & chem engn, chongqing 400044, peoples r china;xuemingli@cqu.edu.cn
关键词	Co-precipitation (Ca(1-x-y) Red Phosphor Ln(y))Moo(4): Xeu(3+) (Ln = y Gd) Photoluminescence Hydrothermal Synthesis Camoo4 Eu3++ Luminescence
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31648
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. L. Yang,X. M. Li,W. L. Feng,et al. Co-precipitation synthesis and photoluminescence properties of (Ca(1-x-y),Ln(y))MoO(4): xEu(3+) (Ln = Y, Gd) red phosphors[J]. Journal of Alloys and Compounds,2010,505(1):239-242.
APA	Y. L. Yang,X. M. Li,W. L. Feng,W. L. Li,&C. Y. Tao.(2010).Co-precipitation synthesis and photoluminescence properties of (Ca(1-x-y),Ln(y))MoO(4): xEu(3+) (Ln = Y, Gd) red phosphors.Journal of Alloys and Compounds,505(1),239-242.
MLA	Y. L. Yang,et al."Co-precipitation synthesis and photoluminescence properties of (Ca(1-x-y),Ln(y))MoO(4): xEu(3+) (Ln = Y, Gd) red phosphors".Journal of Alloys and Compounds 505.1(2010):239-242.