> »This has even boosted efficiency to almost 27%, which represents the state-of-the-art. After 1,200 hours of continuous operation under standard illumination, no decrease in efficiency was observed.«

Kim, M. et al. Conformal quantum dot–SnO2 layers as electron transporters for efficient perovskite solar cells. Science 375, 302–306 (2022). https://doi.org/10.1038/s41566-025-01791-1