Lead halide perovskite solar cells (PSCs) have shown unprecedented development in
efficiency and progressed relentlessly in improving stability. All the achievements have been …

Perovskite solar cells represent a promising third-generation photovoltaic technology with
low fabrication cost and high power conversion efficiency. In light of the rapid development …

Daily temperature variations induce phase transitions and lattice strains in halide
perovskites, challenging their stability in solar cells. We stabilized the perovskite black …

Perovskites with low ionic radii metal centres (for example, Ge perovskites) experience both
geometrical constraints and a gain in electronic energy through distortion; for these reasons …

The inverted perovskite solar cell has made great progress in recent years and the quality of
the heterojunction has played a key role. Here, a series of halide‐substituted benzoic acid …

Mixed-halide perovskites enable precise spectral tuning across the entire spectral range
through composition engineering. However, mixed halide perovskites are susceptible to ion …

Solution‐processed 2D perovskite films generally contain mixed quantum wells (QWs) with
multiple well width distribution, which seriously weakens the charge transfer. To achieve …

The perovskite research community have leveraged ionic and covalent bonding to engineer
efficient optoelectronic devices. These interactions are large in magnitude, with their effects …

We report here on the status of research on halogen bonds and other σ-hole interactions
involving p-block elements in Lewis acidic roles, such as chalcogen bonds, pnictogen bonds …

For halide perovskites that are susceptible to photolysis and ion migration, iodide-related
defects, such as iodine (I2) and iodine vacancies, are inevitable. Even a small number of …