Fig. 5: Photo-physical analyses to investigate recombination kinetics and trap states of perovskites. | Nature Communications

Fig. 5: Photo-physical analyses to investigate recombination kinetics and trap states of perovskites.

From: Proton-transfer-induced 3D/2D hybrid perovskites suppress ion migration and reduce luminance overshoot

Fig. 5

a Temperature-dependent PL of 3D perovskite and b Ratio between integrated PL of band emission and trap-mediated emission of 3D perovskite as a function of temperature and its fitted curve according to Boltzmann distribution function. c Temperature-dependent PL of 3D/2D hybrid perovskite. d Excited charge carrier density-dependent PL lifetimes of the perovskites. e Schematic of charge carrier recombination dynamics of the perovskites. f I–V curves of hole-only devices with 3D perovskite and 3D/2D hybrid perovskite.

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