All-perovskite Multi-junction Solar Cells

Perovskite solar cells are being stacked into triple-layer devices that could convert over 37% of sunlight into electricity—a leap beyond today’s best single-layer cells. Today’s solar panels typically capture only a fraction of the solar spectrum. Multi-junction cells, which stack different materials to absorb different wavelengths, can reach higher efficiencies, but they are expensive to manufacture. This project aims to build all-perovskite triple-junction cells that are both highly efficient and potentially cheap to produce. The researchers will develop new perovskite materials, study their fundamental properties, engineer thin-film devices, and tackle the persistent problem of stability—perovskites tend to degrade quickly. If successful, these cells could make solar power far more cost-effective and space-efficient, accelerating the UK’s shift to low-carbon energy. They could be used in rooftop panels, solar farms, or even integrated into buildings and vehicles. The project also involves industrial partners, so the technology is designed for eventual manufacturing and commercial deployment. This is applied research with a clear practical goal: to give the UK industrial leadership in next-generation solar technology.