Elongation and plasmonic activity of embedded metal nanoparticles following heavy ion irradiation
Korkos, S., Arstila, K., Tapio, K., Kinnunen, S., Toppari, J. J., & Sajavaara, T. (2023). Elongation and plasmonic activity of embedded metal nanoparticles following heavy ion irradiation. RSC Advances, 13(9), 5851-5858. https://doi.org/10.1039/D3RA00573A
Julkaistu sarjassa
RSC AdvancesTekijät
Päivämäärä
2023Oppiaine
FysiikkaYdin- ja kiihdytinfysiikan huippuyksikköKiihdytinlaboratorioNanoscience CenterPhysicsCentre of Excellence in Nuclear and Accelerator Based PhysicsAccelerator LaboratoryNanoscience CenterTekijänoikeudet
© 2023 The Author(s). Published by the Royal Society of Chemistry
Shape modification of embedded nanoparticles by swift heavy ion (SHI) irradiation is an effective way to produce nanostructures with controlled size, shape, and orientation. In this study, randomly oriented gold nanorods embedded in SiO2 are shown to re-orient along the ion beam direction. The degree of orientation depends on the irradiation conditions and the nanorod's initial size. SHI irradiation was also applied to modify spherical metallic nanoparticles embedded in Al2O3. The results showed that they elongate due to the irradiation comparably to those embedded in SiO2. Metallic nanostructures embedded in dielectric matrices can exhibit localized surface plasmon (LSP) modes. The elongated nanoparticles investigated by means of dark-field spectroscopy showed two discrete peaks which correspond to longitudinal and transverse modes.
Julkaisija
Royal Society of Chemistry (RSC)ISSN Hae Julkaisufoorumista
2046-2069Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/176985396
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Suomen AkatemiaRahoitusohjelmat(t)
Akatemiahanke, SALisätietoja rahoituksesta
We gratefully acknowledge the Academy of Finland NANOIS project (Project No. 309730) for financial support.Lisenssi
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