Solar record

The highest efficiency rating with the largest perovskite solar cells to date has been achieved by Anita Ho-Baillie, of the Australian Centre for Advanced Photovoltaics (ACAP) and her colleagues. Perovskites are flexible, cheap to produce and simple to make, according to the team and so represent an important new substrate for a wide range of applications, including solar power. The new cell is at least 10 times bigger than the current certified high-efficiency perovskite solar cells on record at 16 square centimeters. Its efficiency is 12.1%.