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Sensitive and reproducible surface-enhanced raman spectroscopy (SERS) with arrays of dimer-nanopillars

文献类型：期刊论文

作者Yue, Weisheng2; Gong, Tiancheng2; Long, Xiyu2; Kravets, Vasyl1; Gao, Ping2; Pu, Mingbo2; Wang, Changtao2
刊名Sensors and Actuators, B: Chemical
出版日期2020-11-01
卷号322页码:128563-1-9
ISSN号0925-4005
关键词Surface-enhanced raman scattering (SEAS) Dimer-nanopillars Surface plasmon Nanofabrication
DOI10.1016/j.snb.2020.128563
文献子类期刊论文
英文摘要It is challenge for most metallic nanostructures to produce both reproducible and high sensitive SERS enhancement, which hinder practical applications of SERS technology. In this work, we report that gold-coated silicon (Au@Si) dimer-nanopillar arrays can be used as SERS substrates with both high-sensitivity and reproducibility. The substrates consist of dimer-nanopillars with height of 480 nm and gaps of 8−10 nm fabricated with electron-beam lithography and followed plasma etching. The dimer-nanopillars have demonstrated SERS enhancement factors (EFs) of 4.3−8.0 × 109 with SERS signals relative standard deviation (RSD) of 3.2−5.6 % (reproducibility). The EFs are 2–3 orders of magnitude higher in comparison with that of other types of ordered nanostructures and are comparable with those of chemically synthesized nanoparticle aggregates. Meanwhile, the reproducibility is among the best ever reported. The dimer-nanopillar arrays were applied for detection of component of rapeseed oil. Cooked and uncooked oil can be clearly identified from the SERS spectra. Our study demonstrated that the dimer-nanopillars are promising to develop highly enhancing and reproducible SERS substrates for SERS sensing applications. © 2020 Elsevier B.V.
出版地LAUSANNE
WOS关键词CHEMICAL-VAPOR-DEPOSITION ; LABEL-FREE DETECTION ; RHODAMINE 6G ; NANOPARTICLES ; SCATTERING ; SUBSTRATE ; GRAPHENE ; SPECTRA ; OIL
WOS研究方向Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000573296500012
源URL[http://ir.ioe.ac.cn/handle/181551/10147]  
专题光电技术研究所_微细加工光学技术国家重点实验室（开放室）
作者单位1.School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester; M13 9PL, United Kingdom
2.State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, P.O. Box 350, Chengdu; 610209, China;
推荐引用方式
GB/T 7714		 Yue, Weisheng,Gong, Tiancheng,Long, Xiyu,et al. Sensitive and reproducible surface-enhanced raman spectroscopy (SERS) with arrays of dimer-nanopillars[J]. Sensors and Actuators, B: Chemical,2020,322:128563-1-9.
APA Yue, Weisheng.,Gong, Tiancheng.,Long, Xiyu.,Kravets, Vasyl.,Gao, Ping.,...&Wang, Changtao.(2020).Sensitive and reproducible surface-enhanced raman spectroscopy (SERS) with arrays of dimer-nanopillars.Sensors and Actuators, B: Chemical,322,128563-1-9.
MLA Yue, Weisheng,et al."Sensitive and reproducible surface-enhanced raman spectroscopy (SERS) with arrays of dimer-nanopillars".Sensors and Actuators, B: Chemical 322(2020):128563-1-9.

入库方式： OAI收割

来源：光电技术研究所

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