The relaxation dynamics of unaligned multi-walled carbon nanotubes decorated with metallic nanoparticles have been studied by using transient optical measurements. The fast dynamics due to the short-lived free-charge carriers excited by the pump are not affected by the presence of nanoparticles. Conversely, a second long dynamics, absent in bare carbon nanotubes, appears only in the decorated samples. A combination of experiment and theory allows us to ascribe this long dynamics to relaxation channels involving electronic states localized at the tube-nanoparticle interface.

Manzoni, G., Ponzoni, S., Galimberti, G., Scarselli, M.a., Pulci, O., Camilli, L., et al. (2016). Ultrafast dynamics in unaligned MWCNTs decorated with metal nanoparticles. NANOTECHNOLOGY, 27(23), 235704 [10.1088/0957-4484/27/23/235704].

Ultrafast dynamics in unaligned MWCNTs decorated with metal nanoparticles

SCARSELLI, MANUELA ANGELA;PULCI, OLIVIA;CAMILLI, LUCA;CASTRUCCI, PAOLA;
2016-05

Abstract

The relaxation dynamics of unaligned multi-walled carbon nanotubes decorated with metallic nanoparticles have been studied by using transient optical measurements. The fast dynamics due to the short-lived free-charge carriers excited by the pump are not affected by the presence of nanoparticles. Conversely, a second long dynamics, absent in bare carbon nanotubes, appears only in the decorated samples. A combination of experiment and theory allows us to ascribe this long dynamics to relaxation channels involving electronic states localized at the tube-nanoparticle interface.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/03 - Fisica della Materia
eng
carbon nanotubes; time-resolved spectroscopy; hybrid systems
Manzoni, G., Ponzoni, S., Galimberti, G., Scarselli, M.a., Pulci, O., Camilli, L., et al. (2016). Ultrafast dynamics in unaligned MWCNTs decorated with metal nanoparticles. NANOTECHNOLOGY, 27(23), 235704 [10.1088/0957-4484/27/23/235704].
Manzoni, G; Ponzoni, S; Galimberti, G; Scarselli, Ma; Pulci, O; Camilli, L; Matthes, L; Castrucci, P; Pagliara, S
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/165642
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