Electric conduction of PbBr-based layered perovskite organic-inorganic superlattice having carbazole chromophore-linked ammonium molecule as an organic layer

► Film preparation of PbBr-based layered perovskite having carbazole-linked molecules was succeeded by a simple spin-coating. ► In the layered perovskite film, in-plane conductivity σ was much enhanced comparing with poly(N-vinylcarbazole) (PVCBz) film. ► The enhancement is assumed to be caused by stacking of carbazole chromophore by inorganic layer as template. ► Despite the higher σ of the perovskite, the activation energy of the perovskite was 2.4 times larger than that of the PVCBz. ► This phenomenon is due to deep traps consisting of boundary in polycrystalline film of the perovskite.