Design of Practical Engineering Strategies for Stabilizing Perovskite Solar Cells

Abstract Perovskite solar cell (PSC), as an efficient and economic-friendly way of converting sunlight into electrical energy directly, has been developed fast in recent decades. Despite promising performance parameters, its long-term chemical stability is presently identified as the most crucial challenge hindering practical application and commercialization, preventing future developments. Recent research showed that introducing materials with suitable traits, and alternating structures of interfaces are important in slowing degradation rates. To illustrate a comprehensive picture of up-to-date strategies taken by different researchers in enhancing PSC durability, this review divides the strategies into five categories: material hydrophobic properties, easing ion migrations, slowing degradation reactions, enhancing molecular chemical interactions, and reducing surface defects, which are five pathways that may lead to more useful interventions in the future.