Science Advances

Supplementary Materials

This PDF file includes:

  • Section S1. Determining doping level and chemical potential in graphene
  • Section S2. Selective carrier extraction from Gr/WS2 heterostructures and charge recombination retardation
  • Section S3. QY calibration using WSe2/WS2 heterostructure and direct high-energy excitation
  • Section S4. Absorbed photon density calculation
  • Section S5. Calculation with 1μPTE model and 2μPTE model
  • Section S6. Hot electron transfer from photoexcited graphene to WSe2
  • Section S7. Additional figures
  • Fig. S1. Determining doping level and chemical potential in graphene.
  • Fig. S2. Selective carrier extraction and charge recombination retardation.
  • Fig. S3. CT in WSe2/WS2 heterostructure.
  • Fig. S4. TR measurements of Gr/WS2 under above-gap excitation.
  • Fig. S5. Beam profile and absorption properties of heterostructures.
  • Fig. S6. Calculated carrier temperature and chemical potential with different models.
  • Fig. S7. Calculated injection electron density.
  • Fig. S8. Hot electron transfer from photoexcited graphene to WSe2.
  • Fig. S9. PL spectra of WS2 monolayer and Gr/WS2 heterostructure.
  • Fig. S10. All TR kinetics of Gr/WS2 heterostructure at WS2 A exciton bleach, at different excitation photon energies and densities.
  • Fig. S11. TR results from another Gr/WS2 sample.
  • Fig. S12. TR spectra of Gr/MoS2 and Gr/MoSe2 heterostructures.
  • References (4548)

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