Ionic Charge Imbalance in Perovskite Solar Cells
Ionic Charge Imbalance in Perovskite Solar Cells
Ion migration in perovskite solar cells is usually analyzed and understood in terms of the charge neutrality condition. However, recent reports indicate the possibility of ionic imbalance in the active layer due to external ion migration and/or chemical reactions, with several puzzling experimental trends not easily amenable to conventional analysis. …