Hybrid Perovskite Materials and Their Functional Properties

Hybrid perovskite materials combine an inorganic framework of corner-sharing BX₆ octahedra with organic cations occupying the interstitial A sites. This versatile architecture supports three-dimensional and two-dimensional variants, the latter forming natural quantum wells that localise electronic states. The unique interplay between ionic bonding, hydrogen bonding and organic–inorganic interactions gives rise to exceptional optoelectronic, photovoltaic and dielectric properties. Rapid advances in film deposition and crystal engineering have led to solar cell efficiencies exceeding 25 % within a decade, while light-emitting diodes and photodetectors based on low-dimensional perovskites exhibit narrow emission linewidths and tunable band gaps. Beyond optics, the structural flexibility of the organic spacer allows the emergence of ferroic phenomena such as ferroelectricity and magnetism, driven by lattice distortions, polar order and spin interactions. Stability under ambient conditions remains a challenge, prompting the development of lead-free compositions and strategies to mitigate moisture-induced degradation. Current research emphasises the control of phase transitions, defect passivation and electron–phonon coupling to optimise charge transport and operational durability. Collectively, these studies underscore the global significance of hybrid perovskites for energy conversion, information technology and multifunctional devices.

Research from Nature Portfolio

Recent studies have elucidated the structural dynamics and phase behaviour of organic–inorganic zinc perovskites, revealing distinct phase transition temperatures for chloride and bromide analogues. Nuclear magnetic resonance investigations demonstrated how halide variation influences spin–lattice relaxation times and cation mobility, providing insight into thermal stability and ion transport mechanisms. Complementary work on two-dimensional copper-based perovskites has shown that the length and conjugation of organic spacers profoundly affect electronic transitions and electron–phonon coupling. Temperature-dependent X-ray absorption spectroscopy and theoretical modelling uncovered characteristic spectral signatures linked to ligand-mediated geometric constraints, guiding the design of lead-free perovskites with tailored photoactive properties.

Hybrid Perovskite Materials and Their Functional Properties publication trend

The graph below shows the total number of articles in hybrid perovskite materials and their functional properties across all publications each year (not limited to Nature Index journals).

Technical terms

Exciton: A quasiparticle comprising a bound electron–hole pair whose radiative recombination governs light emission and absorption in semiconductors.

Electron–phonon coupling: The interaction between charge carriers and lattice vibrations that influences carrier mobility and optical linewidths.

Two-dimensional perovskite: A layered structure featuring alternating inorganic octahedral sheets and organic spacer layers, resulting in quantum-well effects.

Phase transition temperature (Tc): The critical temperature at which a material undergoes a change in crystal symmetry or dynamic ordering, affecting its functional properties.

Thermochromism: The reversible change in optical properties or colour of a material in response to temperature variations, driven by structural or electronic rearrangements.

Spin–lattice relaxation time (T1ρ): A measure of the rate at which nuclear spin systems exchange energy with the surrounding lattice, used to probe molecular and ionic dynamics.

References

1. The expanding world of hybrid perovskites: materials properties and emerging applications. MRS Communications (2015).
2. Photostability of 2D Organic-Inorganic Hybrid Perovskites. Materials (2014).
3. Direct deposition strategy for highly ordered inorganic organic perovskite thin films and their optoelectronic applications. Optical Materials Express (2014).
4. Single crystal of two-dimensional mixed-halide copper-based perovskites with reversible thermochromism. Journal of Materials Chemistry C (2021).
5. Polarity and Ferromagnetism in Two-Dimensional Hybrid Copper Perovskites with Chlorinated Aromatic Spacers. Chemistry of Materials (2022).
6. Physicochemical properties and structural dynamics of organic–inorganic hybrid [NH3(CH2)3NH3]ZnX4 (X = Cl and Br) crystals. Scientific Reports (2021).
7. Ligand size effects in two-dimensional hybrid copper halide perovskites crystals. Communications Materials (2021).