Oxford PV has set a new world record for the efficiency of a commercial-sized solar cell, marking a significant breakthrough in the drive towards a low-carbon global economy. The record-breaking solar cell converted 28.6% of the sun’s energy into electricity, as independently certified by Fraunhofer ISE. The cell was made by depositing a thin film of the material perovskite onto a conventional silicon solar cell. The combined ‘perovskite-on-silicon’ tandem solar cell achieves a conversion eff...