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Hierarchical electrohydrodynamic structures for surface-enhanced Raman scattering

Hierarchical electrohydrodynamic structures for surface-enhanced Raman scattering
Hierarchical electrohydrodynamic structures for surface-enhanced Raman scattering
Surface enhanced Raman scattering (SERS) is a well-established spectroscopic technique that requires nanoscale metal structures to achieve high signal sensitivity. While most SERS substrates are manufactured by conventional lithographic methods, the development of a cost-effective approach to create nanostructured surfaces is a much sought-after goal in the SERS community. Here, a method is established to create controlled, self-organized, hierarchical nanostructures using electrohydrodynamic (HEHD) instabilities. The created structures are readily fine-tuned, which is an important requirement for optimizing SERS to obtain the highest enhancements. HEHD pattern formation enables the fabrication of multiscale 3D structured arrays as SERS-active platforms. Importantly, each of the HEHD-patterned individual structural units yield a considerable SERS enhancement. This enables each single unit to function as an isolated sensor. Each of the formed structures can be effectively tuned and tailored to provide high SERS enhancement, while arising from different HEHD morphologies. The HEHD fabrication of sub-micrometer architectures is straightforward and robust, providing an elegant route for high-throughput biological and chemical sensing.
1521-4095
OP175-OP180
Goldberg-Oppenheimer, Pola
84411432-125e-40f0-8057-ed4372cc5217
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Steiner, Ullrich
839dfd85-73db-4125-b9e9-775296f6411f
Goldberg-Oppenheimer, Pola
84411432-125e-40f0-8057-ed4372cc5217
Mahajan, Sumeet
b131f40a-479e-4432-b662-19d60d4069e9
Steiner, Ullrich
839dfd85-73db-4125-b9e9-775296f6411f

Goldberg-Oppenheimer, Pola, Mahajan, Sumeet and Steiner, Ullrich (2012) Hierarchical electrohydrodynamic structures for surface-enhanced Raman scattering. Advanced Materials, 24 (23), OP175-OP180. (doi:10.1002/adma.201104159).

Record type: Article

Abstract

Surface enhanced Raman scattering (SERS) is a well-established spectroscopic technique that requires nanoscale metal structures to achieve high signal sensitivity. While most SERS substrates are manufactured by conventional lithographic methods, the development of a cost-effective approach to create nanostructured surfaces is a much sought-after goal in the SERS community. Here, a method is established to create controlled, self-organized, hierarchical nanostructures using electrohydrodynamic (HEHD) instabilities. The created structures are readily fine-tuned, which is an important requirement for optimizing SERS to obtain the highest enhancements. HEHD pattern formation enables the fabrication of multiscale 3D structured arrays as SERS-active platforms. Importantly, each of the HEHD-patterned individual structural units yield a considerable SERS enhancement. This enables each single unit to function as an isolated sensor. Each of the formed structures can be effectively tuned and tailored to provide high SERS enhancement, while arising from different HEHD morphologies. The HEHD fabrication of sub-micrometer architectures is straightforward and robust, providing an elegant route for high-throughput biological and chemical sensing.

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More information

Published date: 4 April 2012
Organisations: Chemistry

Identifiers

Local EPrints ID: 342908
URI: http://eprints.soton.ac.uk/id/eprint/342908
ISSN: 1521-4095
PURE UUID: bdb81ad5-22d6-4ed2-a1db-dd642627f435
ORCID for Sumeet Mahajan: ORCID iD orcid.org/0000-0001-8923-6666

Catalogue record

Date deposited: 18 Dec 2012 11:51
Last modified: 18 Feb 2021 17:09

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