Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications
| Autor: | Muhammad Hanif, Per Morgen, Jacek Fiutowski, Jonas Beermann, Sergey M. Novikov, Sergey I. Bozhevolnyi, Andrey B. Evlyukhin, Horst-Günter Rubahn, Vladimir Popok |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Photoluminescence SURFACE silver clusters Physics::Optics Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences NANOSTRUCTURES Silver nanoparticle Monocrystalline silicon symbols.namesake Condensed Matter::Materials Science Microscopy Electrochemistry Physics::Atomic and Molecular Clusters General Materials Science Spectroscopy Plasmon SPECTROSCOPY SERS NANOCLUSTERS Surfaces and Interfaces Surface-enhanced Raman spectroscopy 021001 nanoscience & nanotechnology Condensed Matter Physics LITHOGRAPHY localised surface plasmon resonance surface-enhanced Raman spectroscopy 0104 chemical sciences AG NANOPARTICLES symbols GROWTH ENHANCED RAMAN-SCATTERING METALS 0210 nano-technology Raman scattering |
| Zdroj: | Novikov, S M, Popok, V N, Evlyukhin, A B, Hanif, M, Morgen, P, Fiutowski, J, Beermann, J, Rubahn, H G & Bozhevolnyi, S I 2017, ' Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications ', Langmuir, vol. 33, no. 24, pp. 6062-6070 . https://doi.org/10.1021/acs.langmuir.7b00772 Novikov, S M, Popok, V N, Evlyukhin, A B, Muhammad, H, Morgen, P, Fiutowski, J, Beermann, J, Rubahn, H-G & Bozhevolnyi, S I 2017, ' Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications ', Langmuir, vol. 33, no. 24, pp. 6062-6070 . https://doi.org/10.1021/acs.langmuir.7b00772 Novikov, S, Popok, V, Evlyukhin, A V, Muhammad, H, Morgen, P, Fiutowski, J, Beermann, J, Rubahn, H-G & Bozhevolnyi, S 2017, ' Highly Stable Monocrystalline Silver Clusters for Plasmonic Applications ', Langmuir, vol. 33, no. 24, pp. 6062-6070 . https://doi.org/10.1021/acs.langmuir.7b00772 |
| DOI: | 10.1021/acs.langmuir.7b00772 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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