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Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS

Efficient substrates for surface-enhanced Raman spectroscopy (SERS) are under constant development, since time-consuming and costly fabrication routines are often an issue for high-throughput spectroscopy applications. In this research, we use a two-step fabrication method to produce self-organized...

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Autores principales: Schreiber, Benjamin, Gkogkou, Dimitra, Dedelaite, Lina, Kerbusch, Jochen, Hübner, René, Sheremet, Evgeniya, Zahn, Dietrich R. T., Ramanavicius, Arunas, Facsko, Stefan, Rodriguez, Raul D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9081445/
https://www.ncbi.nlm.nih.gov/pubmed/35539709
http://dx.doi.org/10.1039/c8ra04031a
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author Schreiber, Benjamin
Gkogkou, Dimitra
Dedelaite, Lina
Kerbusch, Jochen
Hübner, René
Sheremet, Evgeniya
Zahn, Dietrich R. T.
Ramanavicius, Arunas
Facsko, Stefan
Rodriguez, Raul D.
author_facet Schreiber, Benjamin
Gkogkou, Dimitra
Dedelaite, Lina
Kerbusch, Jochen
Hübner, René
Sheremet, Evgeniya
Zahn, Dietrich R. T.
Ramanavicius, Arunas
Facsko, Stefan
Rodriguez, Raul D.
author_sort Schreiber, Benjamin
collection PubMed
description Efficient substrates for surface-enhanced Raman spectroscopy (SERS) are under constant development, since time-consuming and costly fabrication routines are often an issue for high-throughput spectroscopy applications. In this research, we use a two-step fabrication method to produce self-organized parallel-oriented plasmonic gold nanostructures. The fabrication routine is ready for wafer-scale production involving only low-energy ion beam irradiation and metal deposition. The optical spectroscopy features of the resulting structures show a successful bidirectional plasmonic response. The localized surface plasmon resonances (LSPRs) of each direction are independent from each other and can be tuned by the fabrication parameters. This ability to tune the LSPR characteristics allows the development of optimized plasmonic nanostructures to match different laser excitations and optical transitions for any arbitrary analyte. Moreover, in this study, we probe the polarization and wavelength dependence of such bidirectional plasmonic nanostructures by a complementary spectroscopic ellipsometry and Raman spectroscopy analysis. We observe a significant signal amplification by the SERS substrates and determine enhancement factors of over a thousand times. We also perform finite element method-based calculations of the electromagnetic enhancement for the SERS signal provided by the plasmonic nanostructures. The calculations are based on realistic models constructed using the same particle sizes and shapes experimentally determined by scanning electron microscopy. The spatial distribution of electric field enhancement shows some dispersion in the LSPR, which is a direct consequence of the semi-random distribution of hotspots. The signal enhancement is highly efficient, making our SERS substrates attractive candidates for high-throughput chemical sensing applications in which directionality, chemical stability, and large-scale fabrication are essential requirements.
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spelling pubmed-90814452022-05-09 Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS Schreiber, Benjamin Gkogkou, Dimitra Dedelaite, Lina Kerbusch, Jochen Hübner, René Sheremet, Evgeniya Zahn, Dietrich R. T. Ramanavicius, Arunas Facsko, Stefan Rodriguez, Raul D. RSC Adv Chemistry Efficient substrates for surface-enhanced Raman spectroscopy (SERS) are under constant development, since time-consuming and costly fabrication routines are often an issue for high-throughput spectroscopy applications. In this research, we use a two-step fabrication method to produce self-organized parallel-oriented plasmonic gold nanostructures. The fabrication routine is ready for wafer-scale production involving only low-energy ion beam irradiation and metal deposition. The optical spectroscopy features of the resulting structures show a successful bidirectional plasmonic response. The localized surface plasmon resonances (LSPRs) of each direction are independent from each other and can be tuned by the fabrication parameters. This ability to tune the LSPR characteristics allows the development of optimized plasmonic nanostructures to match different laser excitations and optical transitions for any arbitrary analyte. Moreover, in this study, we probe the polarization and wavelength dependence of such bidirectional plasmonic nanostructures by a complementary spectroscopic ellipsometry and Raman spectroscopy analysis. We observe a significant signal amplification by the SERS substrates and determine enhancement factors of over a thousand times. We also perform finite element method-based calculations of the electromagnetic enhancement for the SERS signal provided by the plasmonic nanostructures. The calculations are based on realistic models constructed using the same particle sizes and shapes experimentally determined by scanning electron microscopy. The spatial distribution of electric field enhancement shows some dispersion in the LSPR, which is a direct consequence of the semi-random distribution of hotspots. The signal enhancement is highly efficient, making our SERS substrates attractive candidates for high-throughput chemical sensing applications in which directionality, chemical stability, and large-scale fabrication are essential requirements. The Royal Society of Chemistry 2018-06-21 /pmc/articles/PMC9081445/ /pubmed/35539709 http://dx.doi.org/10.1039/c8ra04031a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Schreiber, Benjamin
Gkogkou, Dimitra
Dedelaite, Lina
Kerbusch, Jochen
Hübner, René
Sheremet, Evgeniya
Zahn, Dietrich R. T.
Ramanavicius, Arunas
Facsko, Stefan
Rodriguez, Raul D.
Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS
title Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS
title_full Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS
title_fullStr Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS
title_full_unstemmed Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS
title_short Large-scale self-organized gold nanostructures with bidirectional plasmon resonances for SERS
title_sort large-scale self-organized gold nanostructures with bidirectional plasmon resonances for sers
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9081445/
https://www.ncbi.nlm.nih.gov/pubmed/35539709
http://dx.doi.org/10.1039/c8ra04031a
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