Perovskite solar cells to reduce solar power costs further
Researchers at Helmholtz-Zentrum Berlin have developed a new perovskite solar cell by incorporating graphene, enhancing its durability and efficiency. This advancement in perovskite technology could significantly reduce production costs and improve the performance of solar cells, potentially increasing the adoption of lightweight, flexible solar solutions over traditional silicon-based panels.
Perovskite solar cells are poised to further reduce solar power costs, offering new efficiencies and manufacturing advantages over traditional silicon-based cells. Perovskite, a synthetic material derived from a naturally occurring mineral, can be applied as an ink or paint, allowing for roll-to-roll fabrication methods. This approach promises significant cost savings and supply chain benefits.
Initially limited by durability issues, perovskite solar cells have seen advancements through tandem configurations with silicon and the development of triple-junction cells. A recent breakthrough by Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) incorporates graphene to enhance durability. By replacing the conductive polymer PEDOT:PSS with a graphene-based formula, researchers have improved the potential of SAM-based all-perovskite multi-junctions.
The U.S. Department of Energy has supported perovskite R&D since 2009, recognizing its potential to transform solar cell costs and efficiency. Globally, initiatives such as the partnership between Queen Mary University of London and Power Roll aim to address the limitations of traditional silicon panels, particularly their weight and energy-intensive manufacturing process.
Scaling up perovskite production remains a challenge. Power Roll is developing defect detection technology to improve manufacturing, while Sofab Inks in Kentucky is working on cost-effective nanoparticle inks. These inks allow for scalable, low-cost coating techniques, reducing production costs and enhancing device performance.
Sofab Inks, originating from the University of Louisville's Conn Center for Renewable Energy Research, collaborates with firms like Halocell to integrate perovskite technology with roll-to-roll systems. The startup's innovations are supported by programs like the NSF I-Corps Site, which aids in reducing startup risks and costs.
Source: Graphene Feed