perovskite solar cells

A U.S. research team reports a stability record for a 2D/3D tin perovskite solar cell with an efficiency of 16.19%. The cell is lead-free, which matters because tin perovskites are seen as a less toxic alternative to lead-based designs, but they have historically degraded quickly. The claim, covered by pv magazine USA, suggests progress in combining decent efficiency with long-term durability.