Luminescence properties of core-shell structured SiO2@CaMoO4:Eu3+ phosphor

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	Luminescence properties of core-shell structured SiO2@CaMoO4:Eu3+ phosphor
	X. X. Ju; X. M. Li; Y. L. Yang; W. L. Li; C. Y. Tao; W. L. Feng
	2012
发表期刊	Journal of Solid State Chemistry
ISSN	0022-4596
卷号	187 页码:109-113
摘要	Uniform SiO2@CaMoO4:Eu3+ red phosphor has been synthesized by sol-gel method, and its luminescence properties have been studied by fluorescence spectrometer. The structure and morphology of the SiO2@CaMoO4:Eu3+ red phosphor have been investigated by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and FT-IR spectrometer. Results indicate that phosphor particles have a core-shell structure and the thickness of the SiO2-shell is about 60 nm. In addition, the luminescent intensity of SiO2@CaMoO4:Eu3+ red phosphor has been greatly enhanced with respect to CaMoO4:Eu3+ phosphor. But the lifetime tau value of SiO2-coated CaMoO4:Eu3+ is slightly smaller than that of non-coated CaMoO4:Eu3+. (C) 2012 Elsevier Inc. All rights reserved.
部门归属	[ju, xiaoxia; li, xueming; yang, yuling; feng, wenlin] chongqing univ, coll chem & chem engn, chongqing 400044, peoples r china. [li, wulin; tao, chuanyi] chongqing univ, key lab optoelect technol & syst, minist educ, coll optoelect engn, chongqing 400044, peoples r china. [feng, wenlin] chongqing univ technol, dept appl phys, chongqing 400054, peoples r china. [feng, wenlin] 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	Camoo4:Eu3++ Sio2 Sol-gel Method Luminescence Red Phosphors Eu3++ Reduction Eu2++ Air Photoluminescence Substitution Temperature Atmosphere Uniform
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60029
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. X. Ju,X. M. Li,Y. L. Yang,et al. Luminescence properties of core-shell structured SiO2@CaMoO4:Eu3+ phosphor[J]. Journal of Solid State Chemistry,2012,187:109-113.
APA	X. X. Ju,X. M. Li,Y. L. Yang,W. L. Li,C. Y. Tao,&W. L. Feng.(2012).Luminescence properties of core-shell structured SiO2@CaMoO4:Eu3+ phosphor.Journal of Solid State Chemistry,187,109-113.
MLA	X. X. Ju,et al."Luminescence properties of core-shell structured SiO2@CaMoO4:Eu3+ phosphor".Journal of Solid State Chemistry 187(2012):109-113.