Ferroelectric Hybrid Perovskite Materials for Optoelectronic Applications

Ferroelectric hybrid perovskites combine the structural versatility of organic–inorganic halide frameworks with switchable electric polarisation, enabling a host of optoelectronic functionalities. Spontaneous polarisation in these materials lifts inversion symmetry, giving rise to bulk photovoltaic effects, pyroelectric responses and enhanced charge separation. The narrow bandgaps of certain compositions extend light absorption into the visible and near-infrared, while layered architectures permit facile solution processing and dimensional tuning. Key advances include two-dimensional derivatives that retain switchable polar order down to atomic thickness and lead-free variants that mitigate toxicity without sacrificing performance. Taken together, these developments point to self-driven photodetectors, polarisation-sensitive imaging devices and novel nano-scale ferroelectric semiconductors as emerging applications of hybrid perovskite ferroelectrics.

Research from Nature Portfolio

Recent studies have demonstrated organic–inorganic hybrid perovskite nanoflakes with robust polarisation switching and stable photoresponse at the monolayer limit. A chemi­cal design based on isopentylammonium and ethylammonium ligands produces a two-dimensional lead-halide perovskite exhibiting a tunable bandgap (1.86 eV to 2.21 eV) and clear ferroelectric hysteresis down to single layers. Another pivotal work established a molecular ferroelectric semiconductor in which benzylammonium and methylammonium cations define a layered lead-chloride perovskite with a spontaneous polarisation exceeding 13 µC cm⁻² and a Curie temperature above 400 K. This foundational discovery underpinned subsequent efforts to exploit polar order for self-powered photodetection and photovoltaic applications. Together, these contributions illuminate pathways to low-cost, scalable ferroelectric semiconductors with integrated polar and photoactive properties.

Ferroelectric Hybrid Perovskite Materials for Optoelectronic Applications publication trend

The graph below shows the total number of articles in ferroelectric hybrid perovskite materials for optoelectronic applications across all publications each year (not limited to Nature Index journals).

Technical terms

Ferroelectricity: Reversible spontaneous polarisation in a non-centrosymmetric crystal under an external field.

Hybrid perovskite: An organic–inorganic halide framework with the general formula ABX₃, where A is an organic cation.

Bulk photovoltaic effect: Generation of photocurrent in a non-centrosymmetric material without a p–n junction.

Ferro-pyro-phototronic effect: Coupling of ferroelectric, pyroelectric and photovoltaic phenomena to enhance optoelectronic response.

Spontaneous polarisation: Intrinsic electric dipole moment arising in a ferroelectric material in the absence of an external field.

References

1. A 2D hybrid perovskite ferroelectric with switchable polarization and photoelectric robustness down to monolayer. Nature Communications (2025).
2. A lead-halide perovskite molecular ferroelectric semiconductor. Nature Communications (2015).
3. X‐ray‐ultraviolet–visible‐near‐infrared photoresponses realized in a lead‐free hybrid perovskite ferroelectric through light‐induced ferro‐pyro‐phototronic effect. InfoMat (2024).
4. A Lead‐Free Ferroelectric 2D Dion–Jacobson Tin Iodide Perovskite. Advanced Materials (2024).