Themed collection Perovskites

This highlight article summarizes the empirical advances in stabilizing the metastable phases of CsPbI₃, aiming to provide useful guidelines to accelerate the development of phase-stable CsSnI₃ for durable lead-free PV applications.

The difference in the growth mechanism between MHP SCs in solution and traditional SCs synthesized by the melting method is specifically focused on, encompassing a discussion of the dissolution, nucleation, and growth processes.

This feature article outlines the impact of solvent–antisolvent interactions on the film formation processes of metal halide perovskites.

Perovskite-inspired absorbers are promising for sustainable indoor light-harvesting. Defect mitigation and device operational stability need attention to accelerate the development of air-stable and low-toxicity photovoltaics.

The compositional gradient engineering of halide perovskites is summarized, where carrier extraction can be promoted in optoelectronic devices and the multiple components on one device facilitate multi-spectral detection/emission applications.

Halide perovskites are developed to be sensitive, stable and scalable in the future commercialization process.

We summarize various effective methods for controlling the film thickness and structural phases in 2D/3D perovskite heterojunction structures and discuss possible solutions to improve the performance of perovskite devices.

The organic–inorganic hybrid halide [APCHA]Cu₂I₄, exhibits green emission under both UV and X-ray excitation. It shows excellent photoluminescence and radioluminescence properties, making it suitable for X-ray detection and imaging applications.

Investigation of sodium/indium-based 2D double perovskites with mono- and divalent organic spacers reveals significant optoelectronic impacts in a novel lead-free Dion–Jacobson phase due to octahedral distortions.

Alkylamines improve the efficiency and stability of carbon-based hole-transport-material free CsPbIBr₂ perovskite solar cells through strain engineering.

Spontaneous assembly formation and thermal dissociation of self-assemblies of lead halide perovskite quantum dots embedded in a polymer host reversibly modulate the photoluminescence color, spectral maxima, and lifetime.

We report well-dispersed highly emitting perovskite emitters synthesized via the surfactant-assisted ball-milling method.

[(S)-3-Aminopyrrolidinium I]₂Bi_2/3I₄ is a novel chiral two-dimensional perovskite-like lead-free bismuth(III) iodide hybrid showing a high phase transition temperature and a narrow bandgap.

By passivating the nanonet with ionic liquid, the optimal PD exhibits the best performance with a switch ratio of about 1.35 × 10⁶, a LDR extending to 140 dB, and responsivity and detectivity values of 0.19 A W⁻¹ and 4.31 × 10¹² Jones, respectively.

The transfer of chirality from organics breaks inherent symmetry, leading to clear second-order NLO responses for chiral zinc halides. Additionally, successful CPL can be induced by doping chiral zinc halides with Sb³⁺ containing 5s² electrons.

Efficient and stable Cs/FA-based inverted PSCs were developed by introducing imidazole diiodide (APDI) for surface termination passivation.

A buried interface treatment by hexachlorotriphosphazene is developed to suppress the open-circuit voltage (V_oc) loss in wide bandgap perovskite solar cells (PerSCs). The PerSCs include a 1.67 eV absorber and deliver a high efficiency of 21.47%.

Machine-learned force fields are used to explain the effects that defect types and perovskite compositions have on the migration of point defects in inorganic halide perovskites.

Zero-dimensional cupper(I) organometallic metal halide, with a perovskite-related structure, exhibits an efficient green cluster-centred emission for next-generation X-ray imaging screens.

A 1D organic metal halide hybrid (C₈H₂₈N₅Pb₃Cl₁₁) containing metal halide nanoribbons has been developed to exhibit efficient dual emission.

We investigated the effect of the crystal structure in Cs₃BiBr₆ and Cs₃Bi₂Br₉ on the photocatalytic performance toward selective benzyl oxidation.

Organic-halide treatment is used to maximize electron extraction of Cs₂AgBiBr₆ solar cells with a PCE of 2.03% and excellent long-term stability.

We synthesized a novel A-site 3D OIHP ferroelectric, methylphosphonium tin triiodide (MPSnI₃), with a narrow bandgap of 1.43 eV.

A perovskite layer functionalized to be an outermost screen can strongly affect the capacity of the underlying device to avoid becoming decomposed under external stimuli, and subsequently affect the photovoltaic performance as well.