Structural rigidity, thermochromism and piezochromism of layered hybrid perovskites containing an interdigitated organic bilayer.

ABSTRACT: Layered hybrid perovskites are intensively researched today as highly tunable materials for efficient light harvesting and emitting devices. In classical layered hybrid perovskites, the structural rigidity mainly stems from the crystalline inorganic sublattice, whereas the organic sublattice has a minor contribution to the rigidity of the material. Here, we report two layered hybrid perovskites, (BTa)₂PbI₄ and (F₂BTa)₂PbI₄, which possess substantially more rigid organic layers due to hydrogen bonding, π-π stacking, and dipole-dipole interactions. These layered perovskites are phase stable under elevated pressures up to 5 GPa and upon temperature lowering down to 80 K. The organic layers, composed of benzotriazole-derived ammonium catio

SUBMITTER: Maufort A 

PROVIDER: S-EPMC11874244 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature