Abstract: A post-deposition treatment universally applicable to a wide range of perovskite solar cell configurations and architectures. The methodology yields significant improvements in device efficiency and lifetime coupled with a reduction in inherent batch-to-batch variability in all performance metrics. Such improvements are achieved following an aerosol-induced recrystallisation of solution-deposited MAPbI3 thin films that result in a significant enlargement and improved homogeneity of grain size. The aerosol treatment is demonstrated as being suitable for a range of active layer thicknesses, interlayer choices, architectures and device active areas.

Abstract: A post-deposition treatment universally applicable to a wide range of perovskite solar cell configurations and architectures. The methodology yields significant improvements in device efficiency and lifetime coupled with a reduction in inherent batch-to-batch variability in all performance metrics. Such improvements are achieved following an aerosol-induced recrystallisation of solution-deposited MAPbI3 thin films that result in a significant enlargement and improved homogeneity of grain size. The aerosol treatment is demonstrated as being suitable for a range of active layer thicknesses, interlayer choices, architectures and device active areas.