Metal halide perovskites have unique optical and electrical properties, which make them an
excellent class of materials for a broad spectrum of optoelectronic applications. However, it …

It has always been a goal to realize high efficiency and broadband emission in single‐
component materials. The appearance of metal halide perovskites makes it possible. Their …

Metal halide perovskites are the first solution processed semiconductors that can compete in
their functionality with conventional semiconductors, such as silicon. Over the past several …

Optically inactive dark exciton states play an important role in light emission processes in
semiconductors because they provide an efficient nonradiative recombination channel …

Interlayer organic cations in quasi-two-dimensional halide perovskites are a versatile tuning
vehicle for the optoelectronic properties of these complex systems, but chemical intuition for …

In atomically thin two-dimensional (2D) crystals, the excitonic properties and band structure
scale strongly with the thickness, providing a new playground for the investigation of exciton …

Two-dimensional (2D) layered Dion–Jacobson (D–J) phase organic–inorganic Sn-based
perovskites show potential applications in field-effect transistors, similar to their Ruddlesden …

2D halide perovskites are among intensely studied materials platforms profiting from
solution-based growth and chemical flexibility. They feature exceptionally strong interactions …

Two-dimensional (2D) perovskites assembled with hydrophobic bulky organic cations
demonstrate much enhanced ambient stability and anisotropic carrier transport, making their …

As the field of 2D halide perovskites (HPs) matures, state-of-the-art techniques to measure
important properties, such as the band gap (E g) and exciton binding energy (E b), continue …