Multifunctional Halide Perovskites

Halide perovskites have recently emerged as a new family of inorganic-based materials that are revolutionizing the fields of photovoltaics and opto-electronics. These materials can be either organic-inorganic hybrid or all-inorganic in composition, and they exhibit highly tunable crystallographic and electronic dimensionality from 3D to 0D. These unique features have opened the door to various novel perovskite-based energy and electronic devices such as solar cells, light-emitting diodes, X-ray medical imaging, radiation detectors, and memristors. Importantly, halide perovskites combine the characteristics of conventional hard materials and soft matter, leading to an unprecedented research platform with numerous opportunities for discovering new fundamental materials science. This Focus Issue will cover the latest research results on topics of structure, characterization, and properties of halide perovskites for multifunctional device applications. We invite contributions from the leading scientists in the perovskite field. Contributing papers are solicited in all areas of halide perovskites, with emphasis on the following areas: • Synthesis and characterization of halide perovskites • Defects and structures of halide perovskites • Electronic and energy applications of halide perovskites