As a key structural parameter, phase depicts the arrangement of atoms in materials.
Normally, a nanomaterial exists in its thermodynamically stable crystal phase. With the …

The exciton, an excited electron–hole pair bound by Coulomb attraction, plays a key role in
photophysics of organic molecules and drives practically important phenomena such as …

Metal halide perovskite materials are an emerging class of solution-processable
semiconductors with considerable potential for use in optoelectronic devices,–. For example …

Semiconductor quantum-well structures and superlattices are key building blocks in modern
optoelectronics, but it is difficult to simultaneously realize defect-free epitaxial growth while …

Progress in optical manipulation has stimulated remarkable advances in a wide range of
fields, including materials science, robotics, medical engineering, and nanotechnology. This …

Since the first reports of solar cells with power conversion efficiencies around 10% in 2012,
the science and technology of perovskite photovoltaics has been progressing at an …

Halide perovskites exhibit unique slow hot-carrier cooling properties capable of unlocking
disruptive perovskite photon–electron conversion technologies (eg, high-efficiency hot …

The recent re‐emergence of halide perovskites has received escalating interest for
optoelectronic applications. In addition to photovoltaics, the multifunctional nature of halide …

Rapid hot‐carrier cooling is a major loss channel in solar cells. Thermodynamic calculations
reveal a 66% solar conversion efficiency for single junction cells (under 1 sun illumination) if …

In lead halide perovskite solar cells, there is at least one recycling event of electron–hole
pair to photon to electron–hole pair at open circuit under solar illumination. This can lead to …