中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Si@Cu@Au AFM tips for tip-enhanced Raman spectrum

文献类型:期刊论文

作者Lu, Pei; Li, Jing; Wang, Dong1; Wan, Li-Jun
刊名SCIENCE CHINA-CHEMISTRY
出版日期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
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
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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.

入库方式: OAI收割

来源:化学研究所

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