Ultrafast dynamics in unaligned MWCNTs decorated with metal nanoparticles

G. Manzoni, S. Ponzoni, G. Galimberti, M. Scarselli, O. Pulci, Luca Camilli, L. Matthes, P. Castrucci, S. Pagliara

    Research output: Contribution to journalJournal articleResearchpeer-review

    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.
    Original languageEnglish
    Article number235704
    JournalNanotechnology
    Volume27
    Issue number23
    Number of pages5
    ISSN0957-4484
    DOIs
    Publication statusPublished - 2016

    Keywords

    • Carbon nanotubes
    • Time-resolved spectroscopy
    • Hybrid systems

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