One-step dual-additive passivated wide-bandgap perovskites to realize 44.72%-efficient indoor photovoltaics

A one-step dual-additive strategy enables high-quality wide-bandgap perovskite films with efficient defect passivation, resulting in a certified record PCE of 44.72%, with a high V oc of 1.069 V, and an FF of 82.3% under U30 light.