The performance of perovskite solar cells is significantly impacted by point defects, such as Schottky, Frenkel, interstitial vacancies, and substitutions. Interstitials (MAi, Pb i, I i) exert a significant influence on carrier concentration and modify the band structure within the material.
The suggested strategies for defect passivation, alongside a summarized depiction (in tabular form) of the passivation agents utilized in perovskite solar cells (PSCs), hold the potential to yield profound insights aimed at enhancing the performance of these devices.
This perspective particularly emphasizes the indispensability of developing advanced approaches for deeply understanding the nature of defects and conducting data-driven defect research for designing reasonable strategies to further improve the performance of perovskite applications.
While charges generated in perovskite layers can be transported through the materials, they may encounter defects such as trapping centers, resulting in reduced efficiency of PSCs. These defects can affect the properties of the perovskite layer and its interfaces, leading to changes in film crystallinity and trap density.
The process of defect passivation in perovskite crystals stands as a critical endeavor in enhancing the performance and stability of perovskite solar cells (PSCs) , , .
The effective management and mitigation of defects inherent to perovskite structures are fundamental for enhancing the photovoltaic performance of Perovskite Solar Cells (PSCs). The performance of perovskite solar cells is significantly impacted by point defects, such as Schottky, Frenkel, interstitial vacancies, and substitutions.