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. 2020 Apr 30;7(12):2000480. doi: 10.1002/advs.202000480

Figure 2.

Figure 2

Ex situ characterizations of MAP perovskite films with different annealing periods from 10 to 60 s, using optimal 30 min HAP perovskite as reference. a) Top‐view SEM images, b) XRD spectra, and c) tendency diagram of normalized PL intensities at 771 nm and average PL decay times.