We use ultrafast transient absorption microscopy to map the effect of structural disorder on the photophysical properties within a micrometer-sized crystal of methylammonium lead iodide (CH3NH3PbI3) perovskite. We reveal a spatial inhomogeneity of the structural and photophysical behavior on the submicrometer scale induced by a local distortion of the crystal lattice, which affects the electron hole correlation over the hundreds of nanometers length scale.
Mohammad Khaja Nazeeruddin, Wei Liu, Ruiyuan Hu, Shanshan Xiao
Mohammad Khaja Nazeeruddin, Nikita Drigo, Alexander Fedorovskiy