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. 2017 Sep 19;8:590. doi: 10.1038/s41467-017-00567-8

Fig. 4.

Fig. 4

Normalized photoluminescence (PL) decays for CH3NH3PbBr3. Thin film (red) and single crystal (blue) excited at 447 nm. The tails of the decay are fitted with an exponential decay function with constants k SC = 2.1 × 106 s−1 and k film = 3.6 × 107 s−1. Inset: zoom on shorter time scale