Researchers have developed a strategy to enhance the stability and efficiency of organic-inorganic perovskite-based photovoltaics by incorporating a small quantity of pulsed laser-ablated 2D layered nanomaterials, such as bismuth titanate nanoparticles. This approach shows promise for overcoming the instability issue in perovskites, which is attributed to trap-assisted nonradiative recombination and charge inhibition at the interface between the perovskite absorbing layer and the charge transport layers. The study found that devices incorporating this strategy demonstrated excellent durability over 1000 hours, despite a slight compromise in efficiency. This breakthrough could lead to more efficient and stable perovskite-based solar cells in the future.
Source: https://pubs.acs.org/doi/10.1021/acsaem.4c02890