Cs2AgBiBr6, as a benchmark lead‐free double perovskite, has emerged as a promising
alternative to lead‐based perovskites because of its high stability, non‐toxicity, exceptional …

The photovoltaics of organic–inorganic lead halide perovskite materials have shown rapid
improvements in solar cell performance, surpassing the top efficiency of semiconductor …

Halide perovskites (HPs) are potential game-changing materials for a broad spectrum of
optoelectronic applications ranging from photovoltaics, light-emitting devices, lasers to …

Since the discovery of Rochelle salt a century ago, ferroelectric materials have been
investigated extensively due to their robust responses to electric, mechanical, thermal …

Layered halide perovskites offer a versatile platform for manipulating light through synthetic
design. Although most layered perovskites absorb strongly in the ultraviolet (UV) or near-UV …

Impedance spectroscopy has been widely applied over the last decades to study
electrochemical systems and solid-state devices. However, performing impedance …

Nonlinear optics has undergone dramatic developments in the past 60 years, which has
revolutionized the photonic and optoelectronic fields with many essential applications such …

Excitation localization involving dynamic nanoscale distortions is a central aspect of
photocatalysis, quantum materials and molecular optoelectronics. Experimental …

The room-temperature charge carrier mobility and excitation–emission properties of metal
halide perovskites are governed by their electronic band structures and intrinsic lattice …

Halide perovskite semiconductors such as methylammonium lead iodide (CH3NH3PbI3)
have achieved great success in photovoltaic devices; however, concerns surrounding …