A Facile Chemical Solution Route to Convert Bulk Cuprous Iodide into Nanoparticles

CuI nanoparticles were fabricated from conventional CuI powders in micrometer size. Acetonitrile was used as a dispersing agent to dissolve CuI powders. With acetonitrile evaporated, poly-2-vinylpyrolidine (PVP) in the solution could effectively restrict CuI particle growth, prevent them from aggregation, and result in the formation of CuI nanoparticles embedded in the polymer matrix.