Preparation and optical properties of rod-shaped gold nanoparticles

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Preparation and optical properties of rod-shaped gold nanoparticles
	Wang, Pingbo 1; Song, Yuzhe 2; Du, Xueyan 1; Liu, Guohan 2
刊名	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
	2010-09-01
卷号	39 期号:9 页码:1672-1675
关键词	Ascorbic acid Aspect ratio Crystal structure Fiber optic sensors High resolution transmission electron microscopy Metal nanoparticles Nanorods Optical properties Plasmons Ultraviolet spectroscopy Ultraviolet visible spectroscopy Gold nanorod Growth mechanisms Morphology and crystal structures Plasmon absorption bands Seed-mediated growth methods UV-VIS absorption spectra UV-vis spectroscopy UV-Vis spectrum
ISSN号	1002185X
英文摘要	Rod-shaped gold nanoparticles were prepared by a seed-mediated growth method with Ag+ as assistant ion, CTAB as surfactant and ascorbic acid as weak reductant. The effect of amount of seeds on the rod aspect ratio and the yield was studied. The morphology and crystal structure of rod-shaped gold nanoparticles were characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The optical properties were tested by UV-Vis spectroscopy. The results indicate that the rod-shaped Au particles were fcc structure. UV-Vis absorption spectra show a transverse plasmon absorption band at 530 nm and a longitude plasmon absorption band at 970-980 nm. Aspect ratios of the rod-shaped nanoparticles increased first, and then decreased with the amount of Au seeds increasing. Meanwhile, an increase in the proportion of spherical gold nanoparticles was observed when the Au seeds were added excessively. Finally, the growth mechanism of the products was discussed.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	Rare Metals Materials and Engineering Press
WOS记录号	WOS:000291965900030
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111817]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院研究生院
作者单位	1.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.Institute of Sensor Technology, Gansu Academy of Sciences, Lanzhou 730000, China
推荐引用方式 GB/T 7714	Wang, Pingbo,Song, Yuzhe,Du, Xueyan,et al. Preparation and optical properties of rod-shaped gold nanoparticles[J]. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2010,39(9):1672-1675.
APA	Wang, Pingbo,Song, Yuzhe,Du, Xueyan,&Liu, Guohan.(2010).Preparation and optical properties of rod-shaped gold nanoparticles.Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,39(9),1672-1675.
MLA	Wang, Pingbo,et al."Preparation and optical properties of rod-shaped gold nanoparticles".Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering 39.9(2010):1672-1675.