Fig. 4 | Scientific Reports

Fig. 4

From: Role of dislocations in self-assembled 2D layered raspberry surface to 3D flower-like microstructural evolution in hybrid halide perovskite

Fig. 4

Nucleation and growth of MABiBrCl microstructures. SEM images for the step-by-step growth obtained for the evolution of 2D lotus leaf-like structure: (a) day 1: initial nucleation of molecular clusters, (b) day 2: initial stage of 2D nucleation of the molecular layer, (c) day 3: growth of 2D larger flake, (d) larger view of top layer of the 2D flake surface (e) day 5: lift-off of the 2D sheet from the substrate to form curvature and (f) day 6: deformation of the 2D layers into a lotus-leaf like structure. A complete ‘lotus leaf-like’ structure was observed on day 7 as shown in Fig. 3(b).

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