A1 Journal article (refereed)
Elongation and plasmonic activity of embedded metal nanoparticles following heavy ion irradiation (2023)


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


JYU authors or editors


Publication details

All authors or editorsKorkos, Spyridon; Arstila, Kai; Tapio, Kosti; Kinnunen, Sami; Toppari, J. Jussi; Sajavaara, Timo

Journal or seriesRSC Advances

eISSN2046-2069

Publication year2023

Publication date16/02/2023

Volume13

Issue number9

Pages range5851-5858

PublisherRoyal Society of Chemistry (RSC)

Publication countryUnited Kingdom

Publication languageEnglish

DOIhttps://doi.org/10.1039/D3RA00573A

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/85617


Abstract

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.


Keywordsnanoparticlesnanostructuresnanotechnologyionising radiationsurface plasmons


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Ministry reportingYes

Reporting Year2023

Preliminary JUFO rating1


Last updated on 2024-03-03 at 18:56