The data sets stored here accompany the related research article, showing the data supporting the figures of the publication. Fig. 1 contains the data of perovskite light-emitting diodes. Fig. 2 includes the data supporting characteristics of perovskite films and molecular interactions. The data of Fig. 3 is charge-carrier kinetics of perovskite films. Fig. 4 contains time-resolved photoluminescence decay kinetics of perovskites with charge-transport layers.