Impact of doping on the carrier dynamics in graphene
arXiv:1508.06783 · doi:10.1038/srep16841
Abstract
We present a microscopic study on the impact of doping on the carrier dynamics in graphene, in particular focusing on its influence on the technologically relevant carrier multiplication in realistic, doped graphene samples. Treating the time- and momentum-resolved carrier-light, carrier-carrier, and carrier-phonon interactions on the same microscopic footing, the appearance of Auger-induced carrier multiplication up to a Fermi level of 300 meV is revealed. Furthermore, we show that doping favors the so-called hot carrier multiplication occurring within one band. Our results are directly compared to recent time-resolved ARPES measurements and exhibit an excellent agreement on the temporal evolution of the hot carrier multiplication for n- and p-doped graphene. The gained insights shed light on the ultrafast carrier dynamics in realistic, doped graphene samples
References in corpus (22)
- Measurement of Ultrafast Carrier Dynamics in Epitaxial Graphene
- Photo-excitation Cascade and Multiple Carrier Generation in Graphene
- Ultrafast collinear scattering and carrier multiplication in graphene
- Snapshots of non-equilibrium Dirac carrier distributions in graphene
- Hot Carrier Transport and Photocurrent Response in Graphene
- Direct view on the ultrafast carrier dynamics in graphene
- Carrier dynamics in epitaxial graphene close to the Dirac point
- Carrier Multiplication in Graphene
- Ultrafast Relaxation Dynamics of Hot Optical Phonons in Graphene
- Non-equilibrium dynamics of photo-excited electrons in graphene: collinear scattering, Auger processes, and the impact of screening
- Impact of Auger processes on carrier dynamics in graphene
- Tracking primary thermalization events in graphene with photoemission at extreme timescales
- Slowing hot carrier relaxation in graphene using a magnetic field
- Tunable Carrier Multiplication and Cooling in Graphene
- Observation of Intra- and Inter-band Transitions in the Optical Response of Graphene
- Photo-excited Carrier Dynamics and Impact Excitation Cascade in Graphene
- Anisotropy of excitation and relaxation of photogenerated Dirac electrons in graphene
- Carrier multiplication in graphene under Landau quantization
- Microscopic description of intraband absorption in graphene: the occurrence of transient negative differential transmission
- Impact Ionization and Carrier Multiplication in Graphene
- Microscopic view on the ultrafast photoluminescence from photo-excited graphene
- Effect of anisotropic band curvature on carrier multiplication in graphene
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- Slow noncollinear Coulomb scattering in the vicinity of the Dirac point in graphene
- Carrier dynamics in graphene: ultrafast many-particle phenomena
- Ultrafast Momentum Imaging of Pseudospin-Flip Excitations in Graphene
- Microscopic origin of the bolometric effect in graphene
- Review on carrier multiplication in graphene
- Photocarrier thermalization bottleneck in graphene
- Ultrafast Opto-Electronic and Thermal Tuning of Third-Harmonic Generation in a Graphene Field Effect Transistor
- Thermalization of photoexcited carriers in two-dimensional transition metal dichalcogenides and internal quantum efficiency of van der Waals heterostructures
- Momentum-space Observation of Optically Excited Non-Thermal Electrons in Graphene with Persistent Pseudospin Polarization
- Impact ionization dynamics in small band-gap 2D materials from a coherent phonon mechanism
- Optical amplification in a CDW-phase of a quasi-two dimensional material
- The impact of nitrogen doping on the linear and nonlinear terahertz response of graphene