A research team at the University of Surrey, in collaboration with Imperial College London, has made a significant breakthrough in perovskite solar cells. The team developed a strategy to enhance both the performance and stability of these solar cells, addressing previously unknown degradation pathways.
The study, published in Energy and Environmental Science, reveals that the researchers produced lead-tin perovskite solar cells with a power conversion efficiency (PCE) of over 23%, one of the best results achieved with this material. Moreover, the design strategy implemented by the team improved the lifetime of these devices by 66%.
To achieve these improvements, the research team focused on understanding the efficiency and stability losses induced by the hole transport layer in the solar cell. They introduced an iodine-reducing agent to inhibit chemical reactions that cause degradation over time.
This advancement brings us closer to producing cheaper and more sustainable solar panels. The University of Surrey is already working on refining these materials, processes, and device architectures to tackle remaining challenges. The team’s innovative research will accelerate the commercial adoption of perovskite-based solar panels, contributing to the UN Sustainable Development Goals 7 (affordable and clean energy), 9 (industry, innovation, and infrastructure), and 13 (climate action).
Source: https://scitechdaily.com/solar-cell-breakthrough-scientists-boost-efficiency-and-longevity-with-miracle-material