Science Advances

Supplementary Materials

This PDF file includes:

  • note S1. Anisotropic optical absorption
  • note S2. Numerical calculation of the exciton binding energy
  • note S3. Substrate screening effect on the exciton binding energy
  • fig. S1. Additional IR extinction data for 4L and 6L BP.
  • fig. S2. Polarized IR extinction spectra for an 8L BP.
  • fig. S3. Comparison of exciton binding energies for suspended and supported few-layer BP.
  • table S1. Summary of experimentally and theoretically obtained values for 1s-2s separation (Δ12), as well as the exciton binding energy (Eb).
  • References (39–43)

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