Study of the electrical properties of large-scale electroluminescent perovskite panels

This contribution deals with the preparation and electrical characterization of large-area (16 mm×38 mm) electroluminescent panels prepared by depositing halide perovskite thin layers and nanoparticles on 3D-printed carbon-polylactic acid (C-PLA) electrode system. Moreover, the contribution includes the comprehensive analysis of current-voltage characteristics of both perovskite thin films (MAPbCl3 and MAPbBr3), perovskite nanoparticles (CsPbCl3 and MAPbBr3) deposited via inverse temperature crystallization method (ITC), and antisolvent-assisted method (ASM). Special attention was paid to the interaction between nanoparticles and polycrystalline films and its effect on electroluminescence of the panel. The results show that the double-layered structures prepared by successive application of the ITC have the microscopic charge carrier mobility up to four order of magnitude higher that the single layer structures. In addition, they exhibit higher photoluminescence and electroluminescence.