Replication Data for: Tunable Ferroelectricity in Ruddlesden-Popper Halide Perovskites

Qiannan Zhang, Ankur Solanki, Kaushik Parida, David Giovanni, Mingjie Li, Thomas La Cour Jansen, Maxim S. Pshenichnikov & Tze Chien Sum
Ruddlesden-Popper (RP) halide perovskites are the new kids on the block for high-performance perovskite photovoltaics with excellent ambient stability. The layered nature of these perovskites offers an exciting possibility of harnessing their ferroelectric property for photovoltaics. Adjacent polar domains in a ferroelectric material allow the spatial separation of electrons and holes. Presently, the structure-function properties governing the ferroelectric behavior of RP perovskites are an open question. Herein, we realize tunable ferroelectricity in 2-phenylethylammonium (PEA) and...
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