Charge-Carrier Dynamics in Mixed Lead-Tin 2D/3D Metal Halide Perovskites

Halide perovskite thin films with mixtures of both standard 3D perovskites and quasi-2D or layered perovskites are promising materials for devices due to their increased stability. Optical-pump/THz probe studies combined with visible transient absorption measurements reveal the complex charge-carrier dynamics in these mixed materials.