Abstract: Metal halide perovskites have recently ascended as leading solution-processed semiconductor materials for optoelectronic applications. Rapid advances in the understanding of materials properties and the development of device architectures led to highly luminescent perovskite light-emitting diodes (PeLEDs). In last few years, materials scientists have been exploring surface passivation strategies to improve the stability of perovskites. It was noted that the selection of the surface ligand is crucial for tailoring the luminescence properties and controlling the surface defects, and thus improving device performance and stability.

Paper Link: https://doi.org/10.1016/j.scib.2020.06.030