Passivating the Vacancy Defects of CsPbCl3 Polycrystalline Films by a Cl-Containing Ionic Liquid for Self-Powered, Charge-Transport-Layer-Free UV Photodetectors

The emerging wide-bandgap CsPbCl3 perovskite shows great potentials for applications in ultraviolet (UV) detection due to its excellent UV response property and UV irradiation durability. However, the abundant Cl vacancy...