Fig. 2 | Scientific Reports

Fig. 2

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

Fig. 2

Nucleation and growth of MABiCl microstructures. SEM images obtained for a period of one week for the step-by-step growth obtained for the evolution of 3D flower structure: (a) day 1: initial nucleation of molecular clusters, (b) day 2: 2D nucleation of the molecular layer, (c) day 3: growth of 2D larger flakes and formation of steps, (d) day 5: top layer of the 2D surface, (e–f) day 6: lift-off of the layers to grow flower petals and deformation of the 2D layers into sectors to form the petals for the flower structure. A fully grown flower structure can be observed on day 7 as shown in Fig. 1(b).

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