Role of interface in stability of perovskite solar cells

- Perovskite solar cells have shown PCE of 22.1% and stability to 3000 hours.
- Device structure and processing parameters are discussed.
- Recent advances in device performance and stability are summarized.
- Role of electron transport and hole transport interfaces on stability are reviewed.

The organo-halide lead perovskite solar cells (PSC) provide a cost effective method of acquiring sunlight energy and converting directly into electrical power with high conversion efficiency. However, the chemical stability of the PSC is a significant issue that is limiting practical application and prevents further device development. The device is extremely sensitive to moisture and may degrade during a few days. Recent investigation demonstrated that the materials, architecture and structure of the interface might play a crucial role in degradation rates and durability of the device. A systematic understanding of interfacial layers in stability of perovskite solar cells is essential to achieve highly stable devices for extensive industrial applications. This report is reviewing the role of interface in stability of perovskite solar cells and discussed their future trends and aspects.

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