IMECH-IR  > 非线性力学国家重点实验室
Nanocracking and metallization doubly defined large-scale 3D plasmonic sub-10 nm-gap arrays as extremely sensitive SERS substrates
Pan RH; Yang Y; Wang YJ; Li S(李爽); Liu Z; Su YW(苏业旺); Quan BG; Li YL; Gu CZ; Li JJ
Source PublicationNANOSCALE
2018-02-21
Volume10Issue:7Pages:3171-3180
ISSN2040-3364
AbstractConsidering the technological difficulties in the existing approaches to form nanoscale gaps, a convenient method to fabricate three-dimensional (3D) sub-10 nm Ag/SiNx gap arrays has been demonstrated in this study, controlled by a combination of stress-induced nanocracking of a SiNx nanobridge and Ag nanofilm deposition. This scalable 3D plasmonic nanogap is specially suspended above a substrate, having a tunable nanogap width and large height-to-width ratio to form a nanocavity underneath. As a surface-enhanced Raman scattering (SERS) substrate, the 3D Ag/SiNx nanogap shows a large Raman enhancement factor of similar to 10(8) and extremely high sensitivity for the detection of Rhodamine 6G (R6G) molecules, even down to 10(-16) M, indicating an extraordinary capability for single-molecule detection. Further, we verified that the Fabry-Perot resonance occurred in the deep SiNx nanocavity under the Ag nanogap and contributed prominently to a tremendous enhancement of the local field in the Agnanogap zone and hence ultrasensitive SERS detection. This method circumvents the technological limitations to fabricate a sub-10 nm metal nanogap with unique features for wide applications in important scientific and technological areas.
DOI10.1039/c7nr08646f
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000425348100009
WOS KeywordSURFACE-ENHANCED RAMAN ; MOLECULAR JUNCTIONS ; LARGE-AREA ; SPECTROSCOPY ; SCATTERING ; FABRICATION ; MICROORGANISMS ; LITHOGRAPHY ; NANOANTENNA ; NANOGAPS
WOS Research AreaChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS SubjectChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
Funding OrganizationMinistry of Science and Technology of China [2016YFA0200800, 2016YFA0200400, 2016YFB0100500] ; National Natural Science Foundation of China [11674387, 91323304, 11704401, 61390503, 11574385, 11574368] ; Strategic Priority Research Program of CAS [XDB07020200] ; Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-SLH042]
Classification一类
Ranking4
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77803
Collection非线性力学国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Phys Sci, CAS Key Lab Vacuum Phys, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
4.Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Pan RH,Yang Y,Wang YJ,et al. Nanocracking and metallization doubly defined large-scale 3D plasmonic sub-10 nm-gap arrays as extremely sensitive SERS substrates[J]. NANOSCALE,2018,10(7):3171-3180.
APA Pan RH.,Yang Y.,Wang YJ.,李爽.,Liu Z.,...&Li JJ.(2018).Nanocracking and metallization doubly defined large-scale 3D plasmonic sub-10 nm-gap arrays as extremely sensitive SERS substrates.NANOSCALE,10(7),3171-3180.
MLA Pan RH,et al."Nanocracking and metallization doubly defined large-scale 3D plasmonic sub-10 nm-gap arrays as extremely sensitive SERS substrates".NANOSCALE 10.7(2018):3171-3180.
Files in This Item: Download All
File Name/Size DocType Version Access License
IrJ2018188.pdf(2356KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Pan RH]'s Articles
[Yang Y]'s Articles
[Wang YJ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Pan RH]'s Articles
[Yang Y]'s Articles
[Wang YJ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Pan RH]'s Articles
[Yang Y]'s Articles
[Wang YJ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IrJ2018188.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.