English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a real-time investigation of ultrafast carrier dynamics insingle-wall carbon nanotube bundles using femtosecond time-resolvedphotoelectron spectroscopy. The experiments allow to study the processesgoverning the subpicosecond and the picosecond dynamics of non-equilibriumcharge-carriers. On the subpicoseond timescale the dynamics are dominated byultrafast electron-electron scattering processes which lead to internalthermalization of the laser excited electron gas. We find that quasiparticlelifetimes decrease strongly as a function of their energy up to 2.38 eV abovethe Fermi-level - the highest energy studied experimentally. The subsequentcooling of the laser heated electron gas down to the lattice temperature byelectron-phonon interaction occurs on the picosecond time-scale and allows todetermine the electron-phonon mass enhancement parameter lambda. The latter isfound to be over an order of magnitude smaller if compared, for example, withthat of a good conductor such as copper.Comment: 17 pages, 19 igure

Charge-carrier dynamics in single-wall carbon nanotube bundles: a time-domain study