Japanese scientists map energy levels in perovskite solar cells, boosting efficiency and stability

A Chiba University-led team mapped energy alignment at electrode/HCM/perovskite interfaces in perovskite solar cells.

Using spectroscopy data, they built a universal model that explains interface dipoles, band bending, and energy level alignment.

The model provides practical rules for choosing and designing hole-collecting monolayers.

This could help develop perovskite solar cells that are more efficient, stable, and reproducible.