2021•Materials AdvancesOpen access

Fast non-ambipolar diffusion of charge carriers and the impact of traps and hot carriers on it in CsMAFA perovskite and GaAs

Hannu P. Pasanen, Maning Liu, Hermann Kahle, Paola Vivo, Nikolai V. Tkachenko

Abstract

The diffusion of charge carriers in metal halide perovskite was thoroughly investigated with a focus on the hot carriers and surface traps, producing new models for the hot carrier cooling, trap behaviour and even evidence of non-ambipolar diffusion.

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Key concepts: Ambipolar diffusion, Charge carrier, Diffusion, Perovskite (structure), Materials science, Carrier lifetime, Chemical physics, Charge (physics)