Three types of perovskite colloidal nanocrystals (PNCs) were synthesized: cesium lead bromide CsPbBr3, cesium lead bromide-chloride CsPb(Br/Cl)3 and cesium lead iodide-bromide CsPb(I/Br)3. The synthesized perovskite nanocrystals were applied to conducting layers of ZnO for the purpose of ...