The unprecedented increase of the power conversion efficiency of metal‐halide perovskite
solar cells has significantly outpaced the understanding of their fundamental properties. One …

One of the fundamental properties of semiconductors is their ability to support highly tunable
electric currents in the presence of electric fields or carrier concentration gradients. These …

The development of halide perovskite semiconductors led to various technological
breakthroughs in optoelectronics, in particular in the areas of photovoltaics and light-emitting …

Layered 2D perovskites are making inroads as materials for photovoltaics and light emitting
diodes, but their photophysics is still lively debated. Although their large exciton binding …

In metal halide perovskites, the complex dielectric screening together with low energy of
phonon modes leads to non-negligible Fröhlich coupling. While this feature of perovskites …

Anharmonicity and local disorder (polymorphism) are ubiquitous in perovskite physics,
inducing various phenomena observed in scattering and spectroscopy experiments. Several …

Halide perovskites constitute a new class of semiconductors that hold promise for low-cost
solar cells and optoelectronics. One key property of these materials is the electron mobility …

Organic-inorganic hybrid metal halide perovskites (MHPs) have attracted tremendous
attention for optoelectronic applications. The long photocarrier lifetime and moderate carrier …

The ab initio Bethe-Salpeter equation (BSE) approach, an established method for the study
of excitons in materials, is typically solved in a limit where only static screening from …

The lead-free halide double perovskite class of materials offers a promising venue for
resolving issues related to toxicity of Pb and long-term stability of the lead-containing halide …