Although high-entropy materials are excellent candidates for a range of functional materials,
their formation traditionally requires high-temperature synthetic procedures of over 1,000° C …

The structural diversity and tunable optoelectronic properties of halide perovskites originate
from the rich chemistry of the metal halide ionic octahedron [MX6] n−(M= Pb2+, Sb3+, Te4+ …

The metal-halide ionic octahedron is the optoelectronic unit for halide perovskites, and a
crown ether–assisted supramolecular assembly approach can pack various ionic octahedra …

Lead-free perovskites have received great attention in white light emitting diodes (WLEDs),
displays, X-ray imaging, etc. However, it still remains a challenge to obtain high …

Vacancy-ordered halide double perovskites (VODPs) have been widely explored throughout
the past few years as promising lead-free alternatives for optoelectronic applications. Yet …

Halide perovskite (HP) materials have attracted much attention in recent years in the fields of
smart home and medical detection due to their low fabrication cost, simple preparation …

In this study, by means of quantum-chemical calculations within the framework of density
functional theory, we considered a number of structural and electronic properties of …

Pressure‐modulated self‐trapped exciton (STE) emission mechanism in all‐inorganic lead‐
free metal halide double perovskites characterized by large Stokes‐shifted broadband …

Highlights•Overview of vacancies in different halide perovskites is presented.•Synthesis
approaches contribute to the generation of vacancies in halide perovskites are …

Vacancy-ordered double perovskites with the formula A 2 MX 6 (where A is a+ 1 cation, M is
a+ 4 metal, and X is a halide ion) offer improved ambient stability over other main-group …