Polar rotor scattering as atomic-level origin of low mobility and thermal conductivity of perovskite CH 3 NH 3 PbI 3

Clarifying the atomistic behaviour of materials will lead to a deeper fundamental understanding and the rational design of future materials. Using time-of-flight quasi-elastic and inelastic neutron scattering measurements Li et al. study the atomic motions of metal-halide perovskite CH3NH3PbI3.