YUMA, Bertrand; BERCIAUD, Stéphane; BESBAS, Jean; SHAVER, Jonah; SANTOS, Silvia M.; GOSH, Saunab; WEISMAN, R. Bruce; COGNET, Laurent; GALLART, Mathieu; ZIEGLER, Marc; HÖNERLAGE, Bernd; LOUNIS, Brahim; GILLIOT, Pierre

doi:10.1103/PhysRevB.87.205412

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

YUMA, Bertrand
Institut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]

BERCIAUD, Stéphane
Institut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]

BESBAS, Jean
Institut de Physique et Chimie des Matériaux de Strasbourg [IPCMS]

Idioma

Article de revue

Este ítem está publicado en

Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2013, vol. 87, p. 205412

American Physical Society

Resumen en inglés

We present a study of free carrier photo-generation and multi-carrier bound states, such as biexcitons and trions (ionized excitons), in semiconducting single-walled carbon nanotubes. Pump-and-probe measurements performed with fs pulses reveal the effects of strong Coulomb interactions between carriers on their dynamics. Biexciton formation by optical transition from exciton population results in an induced absorption line (binding energy 130 meV). Exciton-exciton annihilation process is shown to evolve at high densities towards an Auger process that can expel carriers from nanotubes. The remaining carriers give rise to an induced absorption due to trion formation (binding energy 190 meV). These features show the dynamics of exciton and free carriers populations.< Leer menos

Metadatos

Compartir este ítem

Licencia de uso del documento

Biexciton, single carrier, and trion generation dynamics in single-walled carbon nanotubes

Idioma

Este ítem está publicado en

Resumen en inglés

URI

DOI

Orígen

Centros de investigación