Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications

Sergey M. Novikov*, Vladimir N. Popok, Andrey B. Evlyukhin, Muhammad Hanif, Per Morgen, Jacek Fiutowski, Jonas Beermann, Horst Günter Rubahn, Sergey I. Bozhevolnyi

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Plasmonic sensor configurations utilizing localized plasmon resonances in silver nanostructures typically suffer from the rapid degradation of silver under 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 (mean diameters of 12.5 and 24 nm) on quartz substrates are fabricated using the cluster-beam technique and characterized by linear spectroscopy, two-photon-excited photoluminescence, surface-enhanced Raman scattering microscopy, and 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 the plasmonic properties of silver NPs.

OriginalsprogEngelsk
TidsskriftLangmuir
Vol/bind33
Udgave nummer24
Sider (fra-til)6062-6070
ISSN0743-7463
DOI
StatusUdgivet - 2017

Fingeraftryk

Silver
silver
Nanoparticles
nanoparticles
Helium
Quartz
helium ions
sensors
Sensors
Metamaterials
meteorology
spectroscopy
Raman spectroscopy
Raman scattering
Resonators
Atomic force microscopy
Nanostructures
Photoluminescence
Microscopic examination
Photons

Citer dette

Novikov, Sergey M. ; Popok, Vladimir N. ; Evlyukhin, Andrey B. ; Hanif, Muhammad ; Morgen, Per ; Fiutowski, Jacek ; Beermann, Jonas ; Rubahn, Horst Günter ; Bozhevolnyi, Sergey I. / Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications. I: Langmuir. 2017 ; Bind 33, Nr. 24. s. 6062-6070.
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abstract = "Plasmonic sensor configurations utilizing localized plasmon resonances in silver nanostructures typically suffer from the rapid degradation of silver under 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 (mean diameters of 12.5 and 24 nm) on quartz substrates are fabricated using the cluster-beam technique and characterized by linear spectroscopy, two-photon-excited photoluminescence, surface-enhanced Raman scattering microscopy, and 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 the plasmonic properties of silver NPs.",
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Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications. / Novikov, Sergey M.; Popok, Vladimir N.; Evlyukhin, Andrey B.; Hanif, Muhammad; Morgen, Per; Fiutowski, Jacek; Beermann, Jonas; Rubahn, Horst Günter; Bozhevolnyi, Sergey I.

I: Langmuir, Bind 33, Nr. 24, 2017, s. 6062-6070.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications

AU - Novikov, Sergey M.

AU - Popok, Vladimir N.

AU - Evlyukhin, Andrey B.

AU - Hanif, Muhammad

AU - Morgen, Per

AU - Fiutowski, Jacek

AU - Beermann, Jonas

AU - Rubahn, Horst Günter

AU - Bozhevolnyi, Sergey I.

PY - 2017

Y1 - 2017

N2 - Plasmonic sensor configurations utilizing localized plasmon resonances in silver nanostructures typically suffer from the rapid degradation of silver under 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 (mean diameters of 12.5 and 24 nm) on quartz substrates are fabricated using the cluster-beam technique and characterized by linear spectroscopy, two-photon-excited photoluminescence, surface-enhanced Raman scattering microscopy, and 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 the plasmonic properties of silver NPs.

AB - Plasmonic sensor configurations utilizing localized plasmon resonances in silver nanostructures typically suffer from the rapid degradation of silver under 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 (mean diameters of 12.5 and 24 nm) on quartz substrates are fabricated using the cluster-beam technique and characterized by linear spectroscopy, two-photon-excited photoluminescence, surface-enhanced Raman scattering microscopy, and 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 the plasmonic properties of silver NPs.

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