Fig. 3
From: Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals

Temporal evolution of NC lattice. a Temperature-dependent XRD with black dashed lines to emphasize the room temperature peak position. b Expansion of lattice planes from static experiments versus temperature along with a linear fit which suggests a thermal expansion coefficient of 28.4 ± 3.5 × 10−6 K−1 along with the bulk thermal expansion coefficient from Stoumpos et al.22. c Integrated absolute change in scattering signal for NCs versus time under a fluence of 4.8 mJ cm−2 along with a biexponential fit. Error bars indicate standard deviation in the measurement. d Change in NC temperature versus time as calculated from our temperature-dependent XRD measurements. Error bars indicate 95% confidence intervals from our fitting algorithm. e Change in relative diffraction peak width (relative to unexcited sample) as calculated from fitting the TR-XRD pattern. Error bars indicate 95% confidence intervals from our fitting algorithm