Fig. 2: Spatially resolved fluorescence lifetime imaging.
a Fluorescence lifetime τ image of a CsPbBr2Cl NC supercrystal obtained by fitting the experimental time-resolved fluorescence with a monoexponential decay function. b Fluorescence lifetime values τ obtained at each pixel inside the supercrystal as a function of the distance to the nearest edge, where the red line shows the mean value, and the dashed lines indicate the confidence interval of ±σ. c, d Analogous results for a CsPbBr3 NC supercrystal.
