Surface Dynamics Transition of Vacuum Vapor Deposited CH₃NH₃PbI₃ Perovskite Thin Films

Figure 3

2D FFT of the surface from MAPbI₃ thin film AFM images of deposition time of (a) 130 s, (b) 160 s, (c) 500 s, and (d) 600 s.

(a)

(b)

(c)

(d)