Pressure-induced 2D-3D conversion in hybrid lead iodide layered perovskite

Here, we demonstrate that 2D D-J perovskites experiencevarious transitions under pressure, such as crystalline-amorphous and 2D-three-dimensional structural transformation, and theprobable metallization are strongly suggested. Moreover, thefundamental changes in the material properties are observed at ambient conditions after pressure treatment, which is crucial for achieving the desired characteristics for viable applications.