Publication date: 15th December 2025
In recent years, the integration of emerging perovskite solar cells with traditional crystalline silicon (c-Si) solar cells to construct perovskite/silicon tandem devices has become a promising photovoltaic technology. However, the integration of commercial silicon cells with perovskite solar cells, particularly on textured silicon substrates featured with large pyramids (2~5μm), presents a significant challenge for achieving effective charge transfer, which is critical for highly efficient tandem solar cells. To address this challenge, this report highlights our recent research progress in molecular-scale nanotechnology. By designing the interface structure of the charge transport layer and optimizing the crystallization process of perovskite on textured silicon substrates, we have fabricated uniform, dense and high-quality perovskite films on the surface of silicon cells with a rough texture. Based on this, we developed highly efficient perovskite/silicon tandem solar cells with certified power conversion efficiency exceeding 34%. This series of research aims to systematically enhance the performance of perovskite/silicon tandem photovoltaic devices and push its industrial application.
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International Conference on Hybrid and Organic Photovoltaics
International Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.
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