Structure-controlled metal halide crystals and perovskite compound crystals

摘要

It is an object of the present invention to provide a technique for regularly controlling the crystal size and arrangement of the perovskite compound. Provided are a nanofiber-like metal halide such as lead iodide, a perovskite compound crystal, or a perovskite compound crystal having a uniform crystal size and a one-dimensional arrangement, and a fibrous aggregate and a film-like body thereof.