Surface-enhanced raman scattering of 4-aminobenzenethiol on au nanorod ordered arrays

Alfonso Martín; Andrea Pescaglini; Carola Schopf; Vittorio Scardaci; Richard Coull; Lorraine Byrne; Daniela Iacopino

doi:10.1021/jp503036y

Surface-enhanced raman scattering of 4-aminobenzenethiol on au nanorod ordered arrays

Alfonso Martín
, Andrea Pescaglini
, Carola Schopf
, Vittorio Scardaci
, Richard Coull
, Lorraine Byrne
, Daniela Iacopino

Research output: Contribution to journal › Article › peer-review

Abstract

A droplet evaporation/stamping method was employed to fabricate closely packed arrays of Au nanorods aligned parallel or perpendicular to a support. The potential as SERS substrates was investigated using model molecule 4-aminobenzenethiol (4-ABT), for which enhanced signals where obtained compared to the signals of the bulk molecule. Enhancement factors of the order of 10 ⁴ and 10⁵ were calculated for parallel and perpendicular arrays, respectively. Quantitative Raman detection of 4-ABT was obtained with detection limits in the nM concentration range. Fabricated arrays displayed good stability and uniformity, showing their potential as sensing platforms for plasmon-induced optical molecular detection.

Original language	English
Pages (from-to)	13260-13267
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	118
Issue number	24
DOIs	https://doi.org/10.1021/jp503036y
Publication status	Published - 19 Jun 2014

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title = "Surface-enhanced raman scattering of 4-aminobenzenethiol on au nanorod ordered arrays",

abstract = "A droplet evaporation/stamping method was employed to fabricate closely packed arrays of Au nanorods aligned parallel or perpendicular to a support. The potential as SERS substrates was investigated using model molecule 4-aminobenzenethiol (4-ABT), for which enhanced signals where obtained compared to the signals of the bulk molecule. Enhancement factors of the order of 10 4 and 105 were calculated for parallel and perpendicular arrays, respectively. Quantitative Raman detection of 4-ABT was obtained with detection limits in the nM concentration range. Fabricated arrays displayed good stability and uniformity, showing their potential as sensing platforms for plasmon-induced optical molecular detection.",

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AU - Martín, Alfonso

AU - Pescaglini, Andrea

AU - Schopf, Carola

AU - Scardaci, Vittorio

AU - Coull, Richard

AU - Byrne, Lorraine

AU - Iacopino, Daniela

PY - 2014/6/19

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N2 - A droplet evaporation/stamping method was employed to fabricate closely packed arrays of Au nanorods aligned parallel or perpendicular to a support. The potential as SERS substrates was investigated using model molecule 4-aminobenzenethiol (4-ABT), for which enhanced signals where obtained compared to the signals of the bulk molecule. Enhancement factors of the order of 10 4 and 105 were calculated for parallel and perpendicular arrays, respectively. Quantitative Raman detection of 4-ABT was obtained with detection limits in the nM concentration range. Fabricated arrays displayed good stability and uniformity, showing their potential as sensing platforms for plasmon-induced optical molecular detection.

AB - A droplet evaporation/stamping method was employed to fabricate closely packed arrays of Au nanorods aligned parallel or perpendicular to a support. The potential as SERS substrates was investigated using model molecule 4-aminobenzenethiol (4-ABT), for which enhanced signals where obtained compared to the signals of the bulk molecule. Enhancement factors of the order of 10 4 and 105 were calculated for parallel and perpendicular arrays, respectively. Quantitative Raman detection of 4-ABT was obtained with detection limits in the nM concentration range. Fabricated arrays displayed good stability and uniformity, showing their potential as sensing platforms for plasmon-induced optical molecular detection.

UR - https://www.scopus.com/pages/publications/84903195853

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EP - 13267

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 24

ER -

Surface-enhanced raman scattering of 4-aminobenzenethiol on au nanorod ordered arrays

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