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Quantitative surface enhanced raman scattering detection based on the "sandwich" structure substrate

文献类型:期刊论文

作者Zhang, Junmeng1; Qu, Shengchun1; Zhang, Lisheng1,2; Tang, Aiwei1; Wang, Zhanguo1
刊名Spectrochimica acta part a-molecular and biomolecular spectroscopy
出版日期2011-08-01
卷号79期号:3页码:625-630
关键词Sers Silver nanoparticles Silver nanoarrays Aao template
ISSN号1386-1425
DOI10.1016/j.saa.2011.03.045
通讯作者Qu, shengchun(qsc@semi.ac.cn)
英文摘要A sandwich structured substrate was designed for quantitative molecular detection using surface enhanced raman scattering (sers), in which the probe molecule was sandwiched between silver nanoparticles (snps) and silver nanoarrays. the snps was prepared using lee-meisel method, and the silver nanoarrays was fabricated on porous anodic aluminum oxide (aao) using electrodepositing method. the sers studies show that the sandwich structured substrate exhibits good stability and reproducibility, and the detection sensitivity of rhodamine 6g (r6g) and melamine can respectively reach up to 10(-19) m and 10(-9) m, which is improved greatly as compared to other sers substrates. the improved sers sensitivity is closely associated with the stronger electromagnetic field enhancement, which stems from localized surface plasmon (lsp) coupling between the two silver nanostructures. furthermore, the sers intensity increased almost linearly as the mother concentration increased, which indicates that such a sandwich structure may be used as a good sers substrate for quantitative analysis. (c) 2011 elsevier b.v. all rights reserved.
WOS关键词SILVER NANORODS ; HOT-SPOTS ; ACTIVE SUBSTRATE ; NANOWIRE ARRAYS ; SPECTROSCOPY ; SERS ; NANOPARTICLES ; SENSITIVITY ; REDUCTION ; STABILITY
WOS研究方向Spectroscopy
WOS类目Spectroscopy
语种英语
WOS记录号WOS:000291832500037
出版者PERGAMON-ELSEVIER SCIENCE LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2428350
专题半导体研究所
通讯作者Qu, Shengchun
作者单位1.Chinese Acad Sci, Key Lab Semicond Mat Sci, Inst Semicond, Beijing 100083, Peoples R China
2.Capital Normal Univ, Beijing Key Lab Nanophoton & Nanostruct, Beijing 100037, Peoples R China
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GB/T 7714
Zhang, Junmeng,Qu, Shengchun,Zhang, Lisheng,et al. Quantitative surface enhanced raman scattering detection based on the "sandwich" structure substrate[J]. Spectrochimica acta part a-molecular and biomolecular spectroscopy,2011,79(3):625-630.
APA Zhang, Junmeng,Qu, Shengchun,Zhang, Lisheng,Tang, Aiwei,&Wang, Zhanguo.(2011).Quantitative surface enhanced raman scattering detection based on the "sandwich" structure substrate.Spectrochimica acta part a-molecular and biomolecular spectroscopy,79(3),625-630.
MLA Zhang, Junmeng,et al."Quantitative surface enhanced raman scattering detection based on the "sandwich" structure substrate".Spectrochimica acta part a-molecular and biomolecular spectroscopy 79.3(2011):625-630.

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来源:半导体研究所

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