Researchers identify main source of wide-bandgap solar perovskite degradation

Key degradation processes identified in next-gen wide bandgap perovskite solar cells

Tokyo, Japan (SPX) Sep 17, 2025 A new study in Materials Futures sheds light on the main degradation pathways affecting scalable wide bandgap (WBG) perovskite solar cells, a promising material for tandem solar technologies. Researchers from imec, Hasselt University, and Ghent University in Belgium demonstrated how thermal stress - whether in the dark or under illumination - plays a central role in device instability. The

Researchers identify main source of wide-bandgap solar perovskite degradation

Scientists in Belgium have investigated how perovskite absorbers used in solar cell degrade under three different stress test types and have found that the interface between the perovskite layer and the electron transport layer suffers from weak thermomechanical stability, which creates the conditions for performance losses.Researchers from imec, Hasselt University, and Ghent University in Belgium have investigated the impact of light and heat o…