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	Highly surface-roughened "flower-like" silver nanoparticles for extremely sensitive substrates of surface-enhanced raman scattering
	Liang, Hongyan1,2; Li, Zhipeng1; Wang, Wenzhong1,3; Wu, Youshi2; Xu, Hongxing1
刊名	Advanced materials
	2009-12-04
卷号	21期号:45页码:4614-4618
ISSN号	0935-9648
DOI	10.1002/adma.200901139
通讯作者	Xu, hongxing()
英文摘要	Surface-enhanced raman scattering (sers) is a new optical spectroscopic analysis technique with potential for highly sensitive detection of molecules. recently, many efforts have been made to find sers substrates with high sensitivity and reproducibility. in this research news article, we provide a focused review on the synthesis of monodispersed silver particles with a novel, highly roughened, "flower-like" morphology by reducing silver nitrate with ascorbic acid in aqueous solutions. the nanometer-scale surface roughness of the particles can provide several hot spots on a single particle, which significantly increases sers enhancement. the incident polarization-dependent sers of individual particles is also studied. although the different "hot spots" on a single particle can have a strong polarization dependency, the total raman signals from an individual particle usually have no obvious polarization dependency. moreover, these flower-like silver particles can be measured by sers with high enhancement several times, which indicates the high stability of the hot spots. hence, the flower-like silver particles here can serve as highly sensitive and reproducible sers substrates.
WOS关键词	SPECTROSCOPY ; POLARIZATION ; ARRAYS ; SERS ; MANIPULATION ; MOLECULES ; JUNCTIONS ; SPHERES ; PAIRS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000272916800008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373701
专题	物理研究所
通讯作者	Xu, Hongxing
作者单位	1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 2.Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China 3.Minzu Univ China, Coll Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Liang, Hongyan,Li, Zhipeng,Wang, Wenzhong,et al. Highly surface-roughened "flower-like" silver nanoparticles for extremely sensitive substrates of surface-enhanced raman scattering[J]. Advanced materials,2009,21(45):4614-4618.
APA	Liang, Hongyan,Li, Zhipeng,Wang, Wenzhong,Wu, Youshi,&Xu, Hongxing.(2009).Highly surface-roughened "flower-like" silver nanoparticles for extremely sensitive substrates of surface-enhanced raman scattering.Advanced materials,21(45),4614-4618.
MLA	Liang, Hongyan,et al."Highly surface-roughened "flower-like" silver nanoparticles for extremely sensitive substrates of surface-enhanced raman scattering".Advanced materials 21.45(2009):4614-4618.

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