Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Text
  • Fitting the PA1 band at t = 0 ps shown in Fig. 3A
  • Inter-Rashba optical transitions in 2D perovskites
  • DFT calculations
  • Fitting the PAFCA band shown in Fig. 5A
  • fig. S1. Schematic structure of PEPI with alternating organic and inorganic layers, forming multiple quantum wells onto the substrate.
  • fig. S2. The absorption spectrum of a PEPI film measured at temperatures ranging from 10 to 290 K, as denoted.
  • fig. S3. The dependence of the EA signal on V2 at various energies below the IB edge at 2.55 eV, where V is the applied voltage.
  • fig. S4. The transient PM band of PEPI film measured at t = 0 ps and 300 K and its fit using a linear combination of the absorption spectrum and its first and second derivatives.
  • References (34–38)

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