Recombination channels in optically excited graphene

• Published in: Graphene-Based Revolutions in ICT And Beyond (Graphene Flagship) Vol. 252; no. 11; pp. 2456 - 2460
• Main Authors: Jago, Roland, Winzer, Torben, Malic, Ermin
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01.11.2015
• Subjects: Auger scattering; Augers; Carrier dynamics; Carrier recombination; carrier-phonon scattering; Channels; Coulomb friction; Dielectric constant; Excitation; Graphene; recombination channels; Solid state physics

We present a theoretical study on the efficiency of non‐radiative recombination channels in optically excited graphene on a substrate. We find that depending on the strength of the excitation pulse and the dielectric constant of the applied substrate, either Auger or phonon‐induced recombination pre...