Perovskite MAPbI3 is considered to be extremely promising for various photovoltaic applications. In connection with such an application, it is important to investigate the transfer of charge carriers in the material used. In this study, using impedance spectroscopy, we determined that the conductivity in polycrystalline MAPbI3 with a grain size of 0.1-1 μm is given by the hopping mechanism of charge carrier transfer. Also, based on the hodograph of the perovskite samples, we proposed an equivalent circuit for replacing the samples studied.
$^1$MSU, Faculty of Physics
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