Porphyrin Functionalization of CsPbBrI 2 /SiO 2 Core–Shell Nanocrystals Enhances the Stability and Efficiency in Electroluminescent Devices

Surface ligand exchange on all-inorganic perovskite nanocrystals of composition CsPbBrI2 reveals improved optoelectronic properties due to strong interactions the nanocrystal with mono-functionalized porphyrin derivatives. The interaction is verified experimentally an array spectroscopic measurements as well computationally by exploiting density functional theory calculations. enhanced current efficiency attributed a lowering charging energy factor 2–3, which determined combining electronic and optical selection ligands. coupled organic–inorganic nanostructures are successfully deployed in light-emitting device higher efficacy charge carrier balance, magnifying almost fivefold compared native ligand.