Luminescence enhancement in bromine and samarium co-doped TiO2 semiconductor nanocrystalline powders

	Luminescence enhancement in bromine and samarium co-doped TiO2 semiconductor nanocrystalline powders
其他题名	论文其他题名
	Gao C. M.; Song H. W.; Hu L. Y.; Pan G. H.; Qin R. F.; Wang F.; Dai Q. L.; Fan L. B.; Liu L. N.; Liu H. H.
	2008
发表期刊	Journal of Luminescence
ISSN	0022-2313
卷号	128 期号:4 页码:559-564
摘要	In this paper, TiO2:Sm3+ (0.75 mol%) nanoparticles doped with different amounts of Br- were prepared by an improved sol-gel method and were characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), VG ESCALAB MKIIX-ray photoelectron spectrometer (XPS) and ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS). Their photoluminescence (PL) properties were investigated at room temperature. The emissions of (4)G(5/2)-H-6(J) (J = 5/2, 7/2, 9/2) transitions of SM3+ ions were observed under the excitation wavelength at 350 nm and the emission intensity depended strongly on the doping amount of Br-. TiO2: SM3+ (0.75 mol%) nanoparticles doped with I mol% of Br- calcined at 700 degrees C exhibit highest intensity of luminescence, which is nearly three times than the undoped one. The mechanism of photoluminescence in the co-doped system was discussed. (c) 2007 Elsevier B.V. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26453
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Gao C. M.,Song H. W.,Hu L. Y.,et al. Luminescence enhancement in bromine and samarium co-doped TiO2 semiconductor nanocrystalline powders[J]. Journal of Luminescence,2008,128(4):559-564.
APA	Gao C. M..,Song H. W..,Hu L. Y..,Pan G. H..,Qin R. F..,...&Liu H. H..(2008).Luminescence enhancement in bromine and samarium co-doped TiO2 semiconductor nanocrystalline powders.Journal of Luminescence,128(4),559-564.
MLA	Gao C. M.,et al."Luminescence enhancement in bromine and samarium co-doped TiO2 semiconductor nanocrystalline powders".Journal of Luminescence 128.4(2008):559-564.

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