Surface-enhanced Raman scattering on gold nanorod pairs with interconnection bars of different widths

Handle URI:
http://hdl.handle.net/10754/562262
Title:
Surface-enhanced Raman scattering on gold nanorod pairs with interconnection bars of different widths
Authors:
Yue, Weisheng; Yang, Yang; Wang, Zhihong; Chen, Longqing; Wang, Xianbin
Abstract:
We demonstrate that surface-enhanced Raman scattering (SERS) enhancement could be tuned by adjusting the width of a connection bar at the bottom of a gold nanorod pair. Arrays of gold nanorod pairs with interconnection bars of different widths at the bottom of the interspace were fabricated by electron-beam lithography and used for the SERS study. Rhodamine 6G (R6G) was used as the probe molecule for the SERS. In addition to the large SERS enhancement observed in the nanostructured substrates, the SERS enhancement increases as the width of the connection bar increases. This result provides an important method for tuning SERS enhancement. Numerical simulations of electromagnetic properties on the nanostructures were performed with CST Microwave Studio, and the results correspond well with the experimental observations. © 2012 Elsevier B.V. All rights reserved.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab; Core Labs
Publisher:
Elsevier BV
Journal:
Sensors and Actuators B: Chemical
Issue Date:
Aug-2012
DOI:
10.1016/j.snb.2012.05.064
Type:
Article
ISSN:
09254005
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorYue, Weishengen
dc.contributor.authorYang, Yangen
dc.contributor.authorWang, Zhihongen
dc.contributor.authorChen, Longqingen
dc.contributor.authorWang, Xianbinen
dc.date.accessioned2015-08-03T09:58:29Zen
dc.date.available2015-08-03T09:58:29Zen
dc.date.issued2012-08en
dc.identifier.issn09254005en
dc.identifier.doi10.1016/j.snb.2012.05.064en
dc.identifier.urihttp://hdl.handle.net/10754/562262en
dc.description.abstractWe demonstrate that surface-enhanced Raman scattering (SERS) enhancement could be tuned by adjusting the width of a connection bar at the bottom of a gold nanorod pair. Arrays of gold nanorod pairs with interconnection bars of different widths at the bottom of the interspace were fabricated by electron-beam lithography and used for the SERS study. Rhodamine 6G (R6G) was used as the probe molecule for the SERS. In addition to the large SERS enhancement observed in the nanostructured substrates, the SERS enhancement increases as the width of the connection bar increases. This result provides an important method for tuning SERS enhancement. Numerical simulations of electromagnetic properties on the nanostructures were performed with CST Microwave Studio, and the results correspond well with the experimental observations. © 2012 Elsevier B.V. All rights reserved.en
dc.publisherElsevier BVen
dc.subjectElectron-beam lithographyen
dc.subjectGold structuresen
dc.subjectLocalized surface plasmonen
dc.subjectSurface-enhanced Raman scattering (SERS)en
dc.titleSurface-enhanced Raman scattering on gold nanorod pairs with interconnection bars of different widthsen
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentCore Labsen
dc.identifier.journalSensors and Actuators B: Chemicalen
kaust.authorYue, Weishengen
kaust.authorYang, Yangen
kaust.authorWang, Zhihongen
kaust.authorChen, Longqingen
kaust.authorWang, Xianbinen
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