An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles

doi:10.1007/s10853-015-9704-7

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院合肥智能机械研究所

	An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles
	He, Lifang 1; Ai, Chengying 1; Wang, Wenbao 1; Gao, Ning 1; Yao, Xiaolin 1; Tian, Chao 1; Zhang, Kui2
刊名	JOURNAL OF MATERIALS SCIENCE
	2016-04-01
卷号	51 期号:8 页码:3854-3860
DOI	10.1007/s10853-015-9704-7
文献子类	Article
英文摘要	Silicon nanowire arrays (SiNWAs) decorated with metallic nanoparticle heterostructures feature promising applications in surface-enhanced Raman scattering (SERS). However, the densely arranged SiNWAs are usually inconvenient for the following decoration of metallic nanoparticles, and only the top area of silicon nanowires (SiNWs) contributes to the SERS detection. To improve the utilization of the heterostructure, herein, oblique SiNWAs were grown separately, and Ag nanoparticles (AgNPs) were uniformly deposited by magnetron sputtering to get the three-dimensional (3D) SiNWAs decorated with AgNPs (AgNPs-SiNWAs) SERS substrate. The large open surfaces of oblique SiNWs would create more surface area available for the formation of hotspots and improve the adsorption and excitation of analyte molecules on the wire. The optimized AgNPs-SiNWAs substrate exhibits high sensitivity in detecting chemical molecule Rhodamine 6G, and the detection limit can reach 1 x 10(-10) M. More importantly, the substrate also can be used as an effective DNA sensor for label-free DNA detection.
WOS关键词	SERS SUBSTRATE ; HOT-SPOTS ; NANOROD ARRAYS ; LARGE-AREA ; SILVER ; SPECTROSCOPY ; COMPOSITE ; MOLECULES ; GOLD
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000369000700019
资助机构	National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; National Natural Science Foundation of China(21205120) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29) ; Natural Science Foundation of Anhui Province(1508085QB29)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31589]
专题	合肥物质科学研究院_中科院合肥智能机械研究所
作者单位	1.Anhui Agr Univ, Dept Appl Chem, Hefei 230036, Peoples R China 2.Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	He, Lifang,Ai, Chengying,Wang, Wenbao,et al. An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles[J]. JOURNAL OF MATERIALS SCIENCE,2016,51(8):3854-3860.
APA	He, Lifang.,Ai, Chengying.,Wang, Wenbao.,Gao, Ning.,Yao, Xiaolin.,...&Zhang, Kui.(2016).An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles.JOURNAL OF MATERIALS SCIENCE,51(8),3854-3860.
MLA	He, Lifang,et al."An effective three-dimensional surface-enhanced Raman scattering substrate based on oblique Si nanowire arrays decorated with Ag nanoparticles".JOURNAL OF MATERIALS SCIENCE 51.8(2016):3854-3860.