Effect of boric acid on structure, morphology and luminescent properties of divalent europium doped calcium aluminate phosphors

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	Effect of boric acid on structure, morphology and luminescent properties of divalent europium doped calcium aluminate phosphors
	C. Zeng; W. L. Feng; Z. Chen
	2014
发表期刊	Optik
ISSN	0030-4026
卷号	125 期号:3 页码:1252-1254
摘要	Blue phosphors Ca1-xAl2O4: xEu(2+) were prepared by high temperature solid-state method. Their structure, morphology and luminescent properties were investigated by X-ray diffraction (XRD), scanning electron microscope (SEM) and fluorescence spectroscopy. The effect of different amounts of fluxing agent H3BO3 on structure, morphology and luminescent properties of blue phosphors Ca1-xAl2O4: xEu(2+) luminous intensity caused by different amount of H3BO3 was also investigated. The amount of H3BO3 doped Ca1-xAl2O4: xEu(2+) in optimal luminous intensity had been determined. The results showed that both the excitation and emission spectra of samples were all broad bands, and that the peak of emission spectra was near 442 nm, which was corresponding to the 4f(6)5d -> 4f(7) transition of Eu2+ illuminating blue light. Ca1-xAl2O4: xEu(2+) (x = 3.5 mol%) could be gained with good morphology and the best luminous intensity when H3BO3 mass ratio was 0.5 wt%. (C) 2013 Elsevier GmbH. All rights reserved.
部门归属	[zeng, chao ; feng, wen-lin] chongqing univ technol, dept appl phys, chongqing 400054, peoples r china. [feng, wen-lin] chongqing key lab time grating sensing & adv test, chongqing 400054, peoples r china. [chen, zhi] chongqing univ technol, sch chem engn, chongqing 400054, peoples r china. [feng, wen-lin] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. ; feng, wl (reprint author), chongqing univ technol, dept appl phys, chongqing 400054, peoples r china. ; wenlinfeng@126.com ; z.chen@cqut.edu.cn
关键词	High Temperature Solid-state Method Photoluminescence H3bo3 Blue Phosphors Caal2o4: Eu2++ Red Phosphors Eu3++ Eu2++
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72342
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Zeng,W. L. Feng,Z. Chen. Effect of boric acid on structure, morphology and luminescent properties of divalent europium doped calcium aluminate phosphors[J]. Optik,2014,125(3):1252-1254.
APA	C. Zeng,W. L. Feng,&Z. Chen.(2014).Effect of boric acid on structure, morphology and luminescent properties of divalent europium doped calcium aluminate phosphors.Optik,125(3),1252-1254.
MLA	C. Zeng,et al."Effect of boric acid on structure, morphology and luminescent properties of divalent europium doped calcium aluminate phosphors".Optik 125.3(2014):1252-1254.