Si@Cu@Au AFM tips for tip-enhanced Raman spectrum

CORC > 化学研究所 > 中国科学院化学研究所 > 分子纳米结构与纳米技术实验室

	Si@Cu@Au AFM tips for tip-enhanced Raman spectrum
	Lu, Pei ; Li, Jing ; Wang, Dong 1; Wan, Li-Jun
刊名	SCIENCE CHINA-CHEMISTRY
	2015-09-01
卷号	58 期号:9 页码:1494-1500
关键词	tip enhanced Raman spectrum metalized tip graphene thiophenol brilliant crystal blue
英文摘要	Tip-enhanced Raman spectrum (TERS) is a scanning probe technique for acquiring chemical information at high spatial resolution and with high chemical sensitivity. The sensitivity of TERS with atomic force microscopy (AFM) system is mainly determined by the metalized tips. Here, we report a fabrication protocol for AFM-TERS tips that incorporate a copper (Cu) primer film between a gold (Au) layer and a Si AFM tips. They were fabricated by coating the Si tip with a 2 nm Cu layer prior to adding a 20 nm Au layer. For top illumination TERS experiments, these tips exhibited superior TERS performance relative to that observed for tips coated with Au only. Samples included graphene, thiophenol and brilliant cresyl blue. The results may derive from the surface roughness of the tip apex and a Cu/Au synergism of local surface plasmon resonances.
收录类别	SCI
语种	英语
公开日期	2015-11-02
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/27650]
专题	化学研究所_分子纳米结构与纳米技术实验室
作者单位	1.CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 3.Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Lu, Pei,Li, Jing,Wang, Dong,et al. Si@Cu@Au AFM tips for tip-enhanced Raman spectrum[J]. SCIENCE CHINA-CHEMISTRY,2015,58(9):1494-1500.
APA	Lu, Pei,Li, Jing,Wang, Dong,&Wan, Li-Jun.(2015).Si@Cu@Au AFM tips for tip-enhanced Raman spectrum.SCIENCE CHINA-CHEMISTRY,58(9),1494-1500.
MLA	Lu, Pei,et al."Si@Cu@Au AFM tips for tip-enhanced Raman spectrum".SCIENCE CHINA-CHEMISTRY 58.9(2015):1494-1500.