A two-in-one layer for longer-lasting perovskite solar cells
Our new hole-transport material, published in Small, both carries charge and heals defects in perovskite solar cells.
Perovskite solar cells are cheap to make and very efficient, but the layers that carry charge out of them are usually expensive and can make the cell less stable over time.
In a new paper in Small, the group reports a DBC–pyrene hole-transport material designed to do two jobs at once: move positive charges (“holes”) out of the perovskite, and passivate — chemically patch — defects at its surface. The result is perovskite solar cells that are both efficient and more robust.
Read the paper: Molecularly Engineered DBC-Pyrene Hole Transport Material Achieves Dual Passivation-Transport Functionality for Efficient and Robust Perovskite Solar Cells, Small (2026).