Fig. 3: Intermediate nanoclusters are identical in nanorod and nanoplatelet synthesis, according to SAXS and TEM data.
From: Antisolvent controls the shape and size of anisotropic lead halide perovskite nanocrystals
a In situ small-angle X-ray scattering (SAXS) intensity recorded in between injection of Cs-oleate into the PbBr2 precursor (t = 0 s) and antisolvent addition (t = 10 s). Solid lines indicate fits to the data. b Decomposition of the SAXS intensity into signals of precursor micelles and intermediate nanoclusters, illustrated for t = 9.5 s, immediately before antisolvent addition. c Dimensions of the PbBr2 precursor micelles and intermediate nanoclusters obtained from SAXS data analysis. d Number density of nanoclusters as a function of time from SAXS data analysis for nanorod and nanoplatelet synthesis, respectively. Error bars correspond to the standard deviation of four consecutive fit results. e Diameter and length of the intermediate nanoclusters from SAXS data analysis. f Transmission electron microscopy (TEM) image of a reaction solution drop casted on a substrate after precursor mixing. g Fast Fourier transform (FFT) of the TEM image in (f) indicates a hexagonal assembly with 5.01 nm and 8.94 nm distance to the nearest and next-nearest nanocluster. Source data are provided as a Source Data file.
