Highly stable silver nanoparticles for SERS applications

Sergey Novikov, Vladimir Popok, A.B. Evlyukhin, Hanif Muhammad, Per Morgen, Jacek Fiutowski, Jonas Beermann, Horst-Günter Rubahn, Sergey Bozhevolnyi

Research output: Contribution to journalConference article in JournalResearchpeer-review

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Abstract

Plasmonics sensor configurations utilizing localized plasmon resonances in silver nanostructures typically suffer from rapid degradation of silver in ambient atmospheric conditions. In this work, we report on the fabrication and detailed characterization of ensembles of monocrystalline silver nanoparticles (NPs), which exhibit a long-term stability of optical properties under ambient conditions without any protective treatments. Ensembles with different densities (surface coverages) of size-selected NPs (diameters from 12.5 to 24 nm) on
quartz substrates are fabricated using the cluster-beam technique and characterized by linear spectroscopy, surface-enhanced Raman scattering microscopy as well as transmission electron, helium-ion and atomic force microscopies. It is found that the fabricated ensembles of monocrystalline silver NPs preserve their plasmonic properties (monitored with optical
spectroscopy) and strong field enhancements (revealed by surface enhanced Raman spectroscopy) at least 5 times longer as compared to chemically synthesized silver NPs with similar sizes. The obtained results are of high practical relevance for the further development of sensors, resonators and metamaterials utilizing plasmonic properties of silver NPs.
Original languageEnglish
Article number012098
Book seriesJournal of Physics: Conference Series (Online)
Volume1092
Issue number1
Number of pages5
ISSN1742-6596
DOIs
Publication statusPublished - 15 Oct 2018
EventMETANANO 2018 - , Russian Federation
Duration: 17 Sep 201821 Sep 2018

Conference

ConferenceMETANANO 2018
CountryRussian Federation
Period17/09/201821/09/2018

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silver
nanoparticles
helium ions
sensors
meteorology
Raman spectroscopy
resonators
atomic force microscopy
Raman spectra
degradation
microscopy
optical properties
fabrication
augmentation
configurations
spectroscopy
electrons

Cite this

Novikov, S., Popok, V., Evlyukhin, A. B., Muhammad, H., Morgen, P., Fiutowski, J., ... Bozhevolnyi, S. (2018). Highly stable silver nanoparticles for SERS applications. Journal of Physics: Conference Series (Online), 1092(1), [012098]. https://doi.org/10.1088/1742-6596/1092/1/012098
Novikov, Sergey ; Popok, Vladimir ; Evlyukhin, A.B. ; Muhammad, Hanif ; Morgen, Per ; Fiutowski, Jacek ; Beermann, Jonas ; Rubahn, Horst-Günter ; Bozhevolnyi, Sergey. / Highly stable silver nanoparticles for SERS applications. In: Journal of Physics: Conference Series (Online). 2018 ; Vol. 1092, No. 1.
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Novikov, S, Popok, V, Evlyukhin, AB, Muhammad, H, Morgen, P, Fiutowski, J, Beermann, J, Rubahn, H-G & Bozhevolnyi, S 2018, 'Highly stable silver nanoparticles for SERS applications' Journal of Physics: Conference Series (Online), vol. 1092, no. 1, 012098. https://doi.org/10.1088/1742-6596/1092/1/012098

Highly stable silver nanoparticles for SERS applications. / Novikov, Sergey; Popok, Vladimir; Evlyukhin, A.B.; Muhammad, Hanif; Morgen, Per; Fiutowski, Jacek; Beermann, Jonas; Rubahn, Horst-Günter; Bozhevolnyi, Sergey.

In: Journal of Physics: Conference Series (Online), Vol. 1092, No. 1, 012098, 15.10.2018.

Research output: Contribution to journalConference article in JournalResearchpeer-review

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AU - Rubahn, Horst-Günter

AU - Bozhevolnyi, Sergey

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AB - Plasmonics sensor configurations utilizing localized plasmon resonances in silver nanostructures typically suffer from rapid degradation of silver in ambient atmospheric conditions. In this work, we report on the fabrication and detailed characterization of ensembles of monocrystalline silver nanoparticles (NPs), which exhibit a long-term stability of optical properties under ambient conditions without any protective treatments. Ensembles with different densities (surface coverages) of size-selected NPs (diameters from 12.5 to 24 nm) onquartz substrates are fabricated using the cluster-beam technique and characterized by linear spectroscopy, surface-enhanced Raman scattering microscopy as well as transmission electron, helium-ion and atomic force microscopies. It is found that the fabricated ensembles of monocrystalline silver NPs preserve their plasmonic properties (monitored with opticalspectroscopy) and strong field enhancements (revealed by surface enhanced Raman spectroscopy) at least 5 times longer as compared to chemically synthesized silver NPs with similar sizes. The obtained results are of high practical relevance for the further development of sensors, resonators and metamaterials utilizing plasmonic properties of silver NPs.

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