Science Advances

Supplementary Materials

This PDF file includes:

  • Section S1. Measurement of change in THz transmission at different THz pulse positions
  • Section S2. THz transient
  • Section S3. Transient photoluminescence
  • Section S4. THz transmission from the perovskite thin film
  • Section S5. THz transmission from bare quartz at different pump fluences
  • Section S6. Free carrier density excited at various pump fluences
  • Section S7. Photoconductivity extraction
  • Fig. S1. AFM images of the 2D, mixed 3D-2D, and 3D perovskites.
  • Fig. S2. Optical characterization of different perovskite (2D, mixed 3D-2D, and 3D) thin films.
  • Fig. S3. Effect of phase change induced by exciton in THz amplitude (ΔT).
  • Fig. S4. Free carrier and exciton dynamics in 2D perovskite.
  • Fig. S5. Transient photoluminescence.
  • Fig. S6. THz transmission through the perovskite thin film.
  • Fig. S7. THz transmission through the bare z-cut quartz.
  • Table S1. Extracted rate constant by fitting the transient photoluminescence spectra.
  • Table S2. Free carrier number density at different pump fluences.

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