The effect of Sm-doping on optical properties of LaB6 nanoparticles

IMR OpenIR

	The effect of Sm-doping on optical properties of LaB6 nanoparticles
	L. M. Chao; L. H. Bao; J. J. Shi; W. Wei; O. Tegus; Z. D. Zhang
	2015
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	622 页码:618-621
摘要	Nanocrystalline particles of LaB6, SmB6 and Sm-doped LaB6 have been prepared by a solid-state reaction in order to investigate the optical properties of ternary rare-earth hexaborides. The sizes of prepared nanoparticles range from dozens to more than 200 nm, as confirmed by XRD, SEM and TEM examinations. The optical property concerning the absorption spectra was tested with ultraviolet-visible-near infrared (UV-vis-NIR) absorption spectrum. All samples exhibit high absorbance in NIR range and UV range. The increase of Sm-doping amount shifts the position of minimum absorptance value of LaB6 to the long-wave direction. Density functional theory (DFT) is employed to interpret the optical properties of Sm-doped LaB6, and results indicate that Sm 4f states change the DOS at near Fermi surface of LaB6 after Sm doping and the reduced number of conduction electrons results into the change of absorption spectra. (C) 2014 Elsevier B.V. All rights reserved.
部门归属	[chao, luomeng ; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [chao, luomeng ; bao, lihong ; wei, wei ; tegus, o.] inner mongolia normal univ, inner mongolia key lab phys & chem funct mat, hohhot 010022, peoples r china. [shi, junjie] peking univ, state key lab mesoscop phys, beijing 100871, peoples r china. [shi, junjie] peking univ, dept phys, beijing 100871, peoples r china. ; bao, lh (reprint author), inner mongolia normal univ, inner mongolia key lab phys & chem funct mat, hohhot 010022, peoples r china. ; baolihong@imnu.edu.cn ; tegusph@imnu.edu.cn
关键词	Nanocrystalline Ternary Rare-earth Hexaborides Optical Properties First-principles Rare-earth Hexaborides Absorption
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/321006/73192
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. M. Chao,L. H. Bao,J. J. Shi,et al. The effect of Sm-doping on optical properties of LaB6 nanoparticles[J]. Journal of Alloys and Compounds,2015,622:618-621.
APA	L. M. Chao,L. H. Bao,J. J. Shi,W. Wei,O. Tegus,&Z. D. Zhang.(2015).The effect of Sm-doping on optical properties of LaB6 nanoparticles.Journal of Alloys and Compounds,622,618-621.
MLA	L. M. Chao,et al."The effect of Sm-doping on optical properties of LaB6 nanoparticles".Journal of Alloys and Compounds 622(2015):618-621.