Hierarchical porous plasmonic metamaterials for reproducible ultrasensitive surface-enhanced raman spectroscopy

Xinyi Zhang; Yuanhui Zheng; Xin Liu; Lu Wei; Jiyan Dai; Dangyuan Lei; Douglas R. MacFarlane

doi:10.1002/adma.201404107

Hierarchical porous plasmonic metamaterials for reproducible ultrasensitive surface-enhanced raman spectroscopy

Xinyi Zhang, Yuanhui Zheng, Xin Liu, Lu Wei, Jiyan Dai, Dangyuan Lei, Douglas R. MacFarlane

Research output: Journal article publication › Journal article › Academic research › peer-review

202 Citations (Scopus)

Abstract

Surface-enhanced Raman spectroscopy (SERS) has emerged as one of the most versatile tools for sensing and imaging chemical and biological analytes. SERS-based molecular detection can be achieved by using metal (mostly silver and gold) nanostructures as plasmonic antennas to amplify the Raman signals. While the enhanced Raman scattering by the nanohole arrays is mainly attributed to excitations of propagating surface plasmons via grating coupling, the nanoparticle arrays share the similar enhancement mechanism as individual nanostructures with excitations of LSPs. In addition, dealloyed nanoporous metals have also been exploited as attractive Raman-active structures because of their large surface area and three-dimensional (3D) bicontinuous porous configuration. Such unique features not only allow for excitations of LSPs but also provide a large number of molecular binding site.

Original language	English
Pages (from-to)	1090-1096
Number of pages	7
Journal	Advanced Materials
Volume	27
Issue number	6
DOIs	https://doi.org/10.1002/adma.201404107
Publication status	Published - 1 Jan 2015

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.201404107

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abstract = "Surface-enhanced Raman spectroscopy (SERS) has emerged as one of the most versatile tools for sensing and imaging chemical and biological analytes. SERS-based molecular detection can be achieved by using metal (mostly silver and gold) nanostructures as plasmonic antennas to amplify the Raman signals. While the enhanced Raman scattering by the nanohole arrays is mainly attributed to excitations of propagating surface plasmons via grating coupling, the nanoparticle arrays share the similar enhancement mechanism as individual nanostructures with excitations of LSPs. In addition, dealloyed nanoporous metals have also been exploited as attractive Raman-active structures because of their large surface area and three-dimensional (3D) bicontinuous porous configuration. Such unique features not only allow for excitations of LSPs but also provide a large number of molecular binding site.",

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AU - Zhang, Xinyi

AU - Zheng, Yuanhui

AU - Liu, Xin

AU - Wei, Lu

AU - Dai, Jiyan

AU - Lei, Dangyuan

AU - MacFarlane, Douglas R.

PY - 2015/1/1

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N2 - Surface-enhanced Raman spectroscopy (SERS) has emerged as one of the most versatile tools for sensing and imaging chemical and biological analytes. SERS-based molecular detection can be achieved by using metal (mostly silver and gold) nanostructures as plasmonic antennas to amplify the Raman signals. While the enhanced Raman scattering by the nanohole arrays is mainly attributed to excitations of propagating surface plasmons via grating coupling, the nanoparticle arrays share the similar enhancement mechanism as individual nanostructures with excitations of LSPs. In addition, dealloyed nanoporous metals have also been exploited as attractive Raman-active structures because of their large surface area and three-dimensional (3D) bicontinuous porous configuration. Such unique features not only allow for excitations of LSPs but also provide a large number of molecular binding site.

AB - Surface-enhanced Raman spectroscopy (SERS) has emerged as one of the most versatile tools for sensing and imaging chemical and biological analytes. SERS-based molecular detection can be achieved by using metal (mostly silver and gold) nanostructures as plasmonic antennas to amplify the Raman signals. While the enhanced Raman scattering by the nanohole arrays is mainly attributed to excitations of propagating surface plasmons via grating coupling, the nanoparticle arrays share the similar enhancement mechanism as individual nanostructures with excitations of LSPs. In addition, dealloyed nanoporous metals have also been exploited as attractive Raman-active structures because of their large surface area and three-dimensional (3D) bicontinuous porous configuration. Such unique features not only allow for excitations of LSPs but also provide a large number of molecular binding site.

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Hierarchical porous plasmonic metamaterials for reproducible ultrasensitive surface-enhanced raman spectroscopy

Abstract

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