Perovskite solar cells are among the most promising technologies for making solar power cheaper and more efficient. Working with partners from the Karlsruhe Institute of Technology (KIT), DESY (Deutsches Elektronen-Synchroton), and the KTH Royal Institute of Technology in Stockholm, the team uncovered the microscopic mechanisms behind the deterioration of the material through temperature swings and developed a strategy to prevent it. Their approach focuses on stabilizing the fragile crystal structure with specially designed molecular “anchors.”

