Mind the (band)gap: nano-to-micro optimization of lead-free perovskite solar cells (PERLA)

PERLA aims at a breakthrough in the rational design of lead (Pb)-free halide perovskites with a wide bandgap for high-performance solar cells. Our holistic investigation from nano-to-micro scale via computational and experimental approaches will reveal the chemistry and physics of defects of perovskites and identify the optimal device stack geometry. Finally, our unprecedented characterization at the film and device level under operational conditions will enable the advanced optimization of device stability. Our research on Pb-free perovskites of the last two years and our close interaction with top-notch perovskite research groups provide a solid scaffold for building PERLA's vision. Our results will promote the commercialization of sustainable photovoltaics.