Power Roll Ltd, headquartered in the UK, and the University of Sheffield have developed a flexible perovskite solar cell with a back-contact design, which eliminates the need for costly, scarce materials like indium. The latest design uses embossed grooves in plastic film filled with perovskite material, simplifying productionand also enhancing efficiency. The flexible cells were analyzed with a Hard X-ray nanoprobe microscope at Diamond Light Source in Oxfordshire, revealing hidden defects and crystal boundaries. These findings are expected to inform future improvements. The lightweight, flexible nature of the cells makes them suitable for deployment in non-traditional locations. Ongoing research, as per the teams, aims to address long-term performance and stability, with further refinements to make the technology more widely applicable.