Scientists at Australia’s University of Queensland have set a new world efficiency record for a quantum dot solar cell. The group fabricated a 0.1cm² device from a perovskite material and measured power conversion efficiency at 16.6%. The record has been verified by the United States National Renewable Energy Laboratory.
U.S. researchers claim to have improved the stability of one of the most promising halide perovskites – α-FAPbI3 – by squeezing the compound’s crystal lattices. The authors of the research prevented the crystal assuming an hexagonal shape at the room temperatures required for a PV device to operate properly.
A technique based on optical imaging has been used by an international research team to illuminate strains in lead halide perovskite solar cells without harming them. The scientists claim the approach helped them discover misorientation between microscopic perovskite crystals was the main cause of the strains.