Effect of ferroelectric nanodomains in perovskite solar cells

In this work we consider the effect of ferroelectric nanodomains on hybrid CH3NH3PbI3 perovskite solar cells. Two-dimensional models of ferroelectric domains are obtained with Metropolis Monte Carlo, considering one effective rotating dipole in each crystal cell. Transport properties of perovskite samples are obtained using drift-diffusion calculations, including local polarization field. We show that the presence of nanodomains have a strong impact on transport and charge carrier separation.