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Innovative Study Demonstrates Key Factors for Long-Lasting Performance of Perovskite Solar Cells in Real-World Conditions
From impressive stability to promising results, the path to commercialization of metal halide perovskite solar cells (MHPSCs) may soon become easier. A new study published in Nature Photonics has shown that accelerated indoor stability testing can predict the reliability of MHPSCs under real-world outdoor conditions. MHPSCs are a promising, low-cost, thin-film photovoltaic (PV) technology. They achieve impressive efficiencies for both single and tandem applications. However, to bring this technology to market, it is important to understand how the cells behave under complex outdoor conditions such as light, heat and humidity. The study shows that the…
Innovative Study Demonstrates Key Factors for Long-Lasting Performance of Perovskite Solar Cells in Real-World Conditions
From impressive stability to promising results, the path to commercialization of metal halide perovskite solar cells (MHPSCs) may soon become easier. A new study published in Nature Photonics has shown that accelerated indoor stability testing can predict the reliability of MHPSCs under real-world outdoor conditions.
MHPSCs are a promising, low-cost, thin-film photovoltaic (PV) technology. They achieve impressive efficiencies for both single and tandem applications. However, to bring this technology to market, it is important to understand how the cells behave under complex outdoor conditions such as light, heat and humidity.
The study shows that the degradation, i.e. the reduction in performance, of the cells under lighting and elevated temperatures provides good indications of their reliability outdoors. By improving the ion-blocking properties of a specific layer in the cell, the most operationally stable temperature could be increased by 2.8 times from 50°C to 85°C. The cells achieved an astonishing lifespan of over 1000 hours at 85°C and almost 8200 hours at 50°C, with an expected 20% degradation.
The results of this study are promising for the further development of MHPSCs and could play an important role in accelerating the development process. By using accelerated indoor stability testing, scientists and engineers can work specifically to improve the reliability of MHPSCs without relying on lengthy outdoor testing.
The researchers also emphasize the importance of the interface between certain layers in the cell, namely indium tin oxide (ITO), self-assembled monolayers (SAM) and perovskite. This interface has a significant impact on the stability and functionality of the cell.
The results of this study are promising and may pave the way to the commercial use of MHPSCs. Further research and development is required to further improve the performance and reliability of this promising technology.
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