Abstract Tin halide perovskites (Sn HaPs) are the top lead‐free choice for perovskite
optoelectronics, but the oxidation of perovskite Sn2+ to Sn4+ remains a key challenge …

Ruddlesden-Popper tin halide perovskites are a class of two-dimensional (2D)
semiconductors with exceptional optoelectronic properties, high carrier mobility, and low …

The exciton binding energy (Eb) is a key parameter that governs the physics of many
optoelectronic devices. At their best, trustworthy and precise measurements of Eb challenge …

Manipulating interface defects can minimize interfacial nonradiative recombination, thus
increasing the stability and performance of perovskite solar cells (PSCs). Here, copper …

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 …

Abstract 2D perovskites hold immense promise in optoelectronics due to their strongly
bound electron-hole pairs (ie, excitons). While exciton polaron from interplay between …

The coupling between the polar lattice and the electronic system is a key ingredient
enabling the impressive properties of 2D and 3D metal-halide perovskites (MHPs). For …

Lead halide perovskites are widely used and intensively studied in optoelectronic devices
due to their superior properties. However, the toxicity of Pb hinders the industrialization of …

Single crystal is the most advantageous of the crystalline states of halide perovskites. It
displays better optical and electrical capabilities than polycrystalline films and microcrystals …

The role of electronic doping in determining the luminescence efficiency of low-dimensional
halide perovskites has been challenging to test due to the structural complexity resulting …