Distinct room-temperature dielectric transition in a perchlorate-based organic–inorganic hybrid perovskite

Abstract

The organic–inorganic hybrid perovskite (H₂hpz)[K(ClO₄)₃] (H₂hpz = diprotonated homopiperazine) exhibits a distinct room-temperature dielectric transition. The dielectric switching at 303 K is associated with an order–disorder transition of the polar guest cation confined in the cage, corresponding to a dynamic change between motional and frozen states.