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. 2021 Aug 6;12:4751. doi: 10.1038/s41467-021-25093-6

Fig. 2. The recombination dynamics of thermally evaporated Cs-Pb-Br films.

Fig. 2

a, b The transient absorption spectra of Cs/Pb = 1.56 (a) and Cs/Pb = 1.24 (b) under 1 ps delay time with various excitation densities. c, d The corresponding dynamic curves of Cs/Pb = 1.56 (c) and Cs/Pb = 1.24 (d). e, f The relationship between carrier recombination decay rates and carrier density in the cases of Cs/Pb = 1.56 (e) and Cs/Pb = 1.24 (f). The detailed fitting method is described in the Supplementary Information.