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

doi:10.1088/1742-6596/1092/1/012098

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 journal › Conference article in Journal › Research › peer-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 language	English
Article number	012098
Book series	Journal of Physics: Conference Series (Online)
Volume	1092
Issue number	1
Number of pages	5
ISSN	1742-6596
DOIs	https://doi.org/10.1088/1742-6596/1092/1/012098
Publication status	Published - 15 Oct 2018
Event	METANANO 2018 - , Russian Federation Duration: 17 Sept 2018 → 21 Sept 2018

Conference

Conference	METANANO 2018
Country/Territory	Russian Federation
Period	17/09/2018 → 21/09/2018

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Novikov_2018_J._Phys.__Conf._Ser._1092_012098Final published version, 843 KBLicence: CC BY 3.0

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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) 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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AU - Novikov, Sergey

AU - Popok, Vladimir

AU - Evlyukhin, A.B.

AU - Muhammad, Hanif

AU - Morgen, Per

AU - Fiutowski, Jacek

AU - Beermann, Jonas

AU - Rubahn, Horst-Günter

AU - Bozhevolnyi, Sergey

PY - 2018/10/15

Y1 - 2018/10/15

N2 - 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.

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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M3 - Conference article in Journal

SN - 1742-6596

VL - 1092

JO - Journal of Physics: Conference Series (Online)

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ER -

Highly stable silver nanoparticles for SERS applications

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