Broadband light-induced absorbance change in multilayer graphene

Nano Lett. 2011 Apr 13;11(4):1540-5. doi: 10.1021/nl104303c. Epub 2011 Mar 28.

Abstract

We report the ultrafast light-induced absorbance change in CVD-grown multilayer graphene. Using femtosecond pump-probe measurements in 1100-1800 nm spectral range, we revealed broadband absorbance change when the probe photon energy was higher than that of the pump photon. The observed phenomenon is interpreted in terms of the Auger recombination and impact ionization playing a significant role in the dynamics of photoexcited carriers in graphene.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Graphite / chemistry*
  • Light
  • Materials Testing
  • Nanostructures / chemistry*
  • Nanostructures / ultrastructure*
  • Particle Size
  • Scattering, Radiation

Substances

  • Graphite