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Reproducible deep-UV SERRS on aluminium nanovoids

Reproducible deep-UV SERRS on aluminium nanovoids
Reproducible deep-UV SERRS on aluminium nanovoids
Surface-enhanced Raman scattering (SERS) with deep-UV-excitation is of particular interest because a large variety of biomolecules such as amino acids exhibit electronic transitions in the UV spectral range and resonant excitation dramatically increases the cross-section of the associated vibrational modes. Despite its potential, UV-SERS is still little explored. We present a novel straightforward scalable route to fabricate aluminium nanovoids for reproducible SERS in the deep-UV without the need of expensive lithographic techniques. We adopt a modified template-stripping method utilizing a soluble template and self-assembled polymer spheres to create nanopatterned aluminium films. We observe high surface enhancement of approximately six orders of magnitude, with excitation in the deep-UV (244 nm) on structures optimized for this wavelength. This work thus enables sensitive detection of organics and bio-molecules, normally non-resonant at visible wavelengths, with deep-UV surface-enhanced resonant Raman scattering on reproducible and scalable substrates.
1948-7185
1449-1452
Sigle, Daniel O.
12935f7e-bb4b-4fa7-a77c-940cb1c7582e
Perkins, Elaine A.
f1da1b93-83e8-4988-b5e4-62835812d39a
Baumberg, Jeremy J.
51423b5f-bdb8-4851-8d50-472253ceb12c
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Sigle, Daniel O.
12935f7e-bb4b-4fa7-a77c-940cb1c7582e
Perkins, Elaine A.
f1da1b93-83e8-4988-b5e4-62835812d39a
Baumberg, Jeremy J.
51423b5f-bdb8-4851-8d50-472253ceb12c
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9

Sigle, Daniel O., Perkins, Elaine A., Baumberg, Jeremy J. and Mahajan, Sumeet (2013) Reproducible deep-UV SERRS on aluminium nanovoids. The Journal of Physical Chemistry Letters, 4 (9), 1449-1452. (doi:10.1021/jz4004813).

Record type: Article

Abstract

Surface-enhanced Raman scattering (SERS) with deep-UV-excitation is of particular interest because a large variety of biomolecules such as amino acids exhibit electronic transitions in the UV spectral range and resonant excitation dramatically increases the cross-section of the associated vibrational modes. Despite its potential, UV-SERS is still little explored. We present a novel straightforward scalable route to fabricate aluminium nanovoids for reproducible SERS in the deep-UV without the need of expensive lithographic techniques. We adopt a modified template-stripping method utilizing a soluble template and self-assembled polymer spheres to create nanopatterned aluminium films. We observe high surface enhancement of approximately six orders of magnitude, with excitation in the deep-UV (244 nm) on structures optimized for this wavelength. This work thus enables sensitive detection of organics and bio-molecules, normally non-resonant at visible wavelengths, with deep-UV surface-enhanced resonant Raman scattering on reproducible and scalable substrates.

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More information

Accepted/In Press date: 9 April 2013
e-pub ahead of print date: 9 April 2013
Published date: 2 May 2013

Identifiers

Local EPrints ID: 350900
URI: http://eprints.soton.ac.uk/id/eprint/350900
ISSN: 1948-7185
PURE UUID: 61a9a128-1181-497b-8673-2a83861e7d4d
ORCID for Sumeet Mahajan: ORCID iD orcid.org/0000-0001-8923-6666

Catalogue record

Date deposited: 10 Apr 2013 16:13
Last modified: 09 Nov 2021 03:16

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Contributors

Author: Daniel O. Sigle
Author: Elaine A. Perkins
Author: Jeremy J. Baumberg
Author: Sumeet Mahajan ORCID iD

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