Observatorio de I+D+i UPM

Descripción
In this work we have studied the elongation of silver nanoparticles irradiated with 40?MeV Bromine ions by means of in situ optical measurements, transmission electron microscopy and molecular dynamics simulations. The localized surface plasmon resonance of silver nanoparticles has a strong dependence on the particle shape and size, which allowed us to obtain the geometrical parameters with remarkable accuracy by means of a fit of the optical spectra. Optical results have been compared with transmission electron microscopy images and molecular dynamics simulations and the agreement is excellent in both cases. An important advantage of in situ measurements is that they yield an extremely detailed information of the full elongation kinetics. Final nanoparticle elongation depends on a complex competition between single-ion deformation, Ostwald ripening and dissolution. Building and validating theoretical models with the data reported in this work should be easier than with the information previously available, due to the unprecedented level of kinetic details obtained from the in situ measurements.
Internacional	Si
JCR del ISI	Si
Título de la revista	Scientific Reports
ISSN	2045-2322
Factor de impacto JCR	5,228
Información de impacto	Datos JCR del año 2015
Volumen	7
DOI	10.1038/s41598-017-01145-0
Número de revista	1
Desde la página	922
Hasta la página	932
Mes	SIN MES
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Esta actividad pertenece a memorias de investigación

• Autor: Ovidio Yordanis Peña Rodriguez (UPM)
• Autor: Alejandro Prada Valverde (UPM)
• Autor: José Olivares (Centro de Micro-Análisis de Materiales (UAM) y Instituto de Óptica (CSIC))
• Autor: Alicia Oliver (Instituto de Física (UNAM))
• Autor: Luis Rodríguez Fernández (Instituto de Física (UNAM))
• Autor: Héctor G. Silva-Pereyra (Instituto de Física (UNAM))
• Autor: Eduardo Bringa (CONICET y Facultad de Ciencias Exactas y Naturales (UNCuyo))
• Autor: Jose Manuel Perlado Martin (UPM)
• Autor: Antonio Juan Rivera de Mena (UPM)

• Creador: Centro o Instituto I+D+i: Instituto de Fusión Nuclear