RT Journal Article
T1 Effects of swift heavy ions on metal nanoparticles embedded in silica: using linearly polarized light to monitor the elongation kinetics
A1 Borrell Grueiro, Olivia
A1 Mendez González, Yanela
A1 Crespillo, Miguel L.
A1 Olivares, José
A1 Ramos Ramos, Diego J.
A1 Junquera González, María Elena
A1 Bañares Morcillo, Luis
A1 Guerrero Martínez, Andrés
A1 Rivera, Antonio
A1 Peña Rodríguez, Ovidio
AB The elongation of metallic nanoparticles (NPs) embedded in a dielectric matrix after irradiation with swift heavy ions is a phenomenon that has been known for several years. However, the precise mechanism behind this deformation process is still not fully understood, primarily due to the dearth of information during intermediate stages of deformation. In this study, we report the continuation of our previous work [Peña-Rodriguez et al., Sci. Rep. 7(1), 922 (2017)], exploiting the strong dependence of the localized surface plasmon resonance on the aspect ratio of elongated metal NPs to study the elongation kinetics in situ. In situ optical absorption spectra were measured using a polarizing beam splitter to separate the longitudinal and transverse plasmon modes of the anisotropic NPs. Then, the detailed geometrical and compositional parameters were determined from a fit of these spectra. The use of linearly polarized light allowed for a more accurate analysis of the elongation kinetics, particularly useful in the first stages, where longitudinal and transverse modes overlap.
PB AIP Publishing
SN 0021-9606
YR 2024
FD 2024
LK https://hdl.handle.net/20.500.14352/109831
UL https://hdl.handle.net/20.500.14352/109831
LA eng
NO Borrell-Grueiro O, Mendez-González Y, Crespillo ML, Olivares J, Ramos-Ramos DJ, Junquera E, et al. Effects of swift heavy ions on metal nanoparticles embedded in silica: Using linearly polarized light to monitor the elongation kinetics. The Journal of Chemical Physics 2024;161:054706. https://doi.org/10.1063/5.0219685.
NO Ministerio de Ciencia, Innovación y Universidades
NO Comunidad Autónoma de Madrid
NO Consejo Europeo de Investigación (ERC)
DS Docta Complutense
RD 6 abr 2025