Phase transition and ionic conduction enhancement induced by co-doping of LiI and MnI2 in a one-dimensional lead iodide perovskite

The co-doped isomorphic Bu 4 N 1− x Li x Mn x Pb 1− x I 3 ( x = 0.011−0.14) hybrids achieved by mechanochemical synthesis exhibit a structural phase transition at ∼342 K along with a significant enhancement of ionic conduction.