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Color plot for transient absorption (TA) in the visible regions for a) pristine, b) PPT‐modified, and c) PPF‐modified perovskite films. Ultrafast time‐resolved TA spectra of d) pristine, e) PPT‐modified, and f) PPF‐modified perovskite films. Power‐dependent carrier dynamics at the probe wavelength of 505 nm for g) pristine, h) PPT‐modified, and i) PPF‐modified perovskite films.
