A new ionic liquid additive developed by researchers at Purdue and Emory universities could transform perovskite solar technology. The compound stabilises crystal growth and buried interfaces, dramatically slowing heat- and light-driven degradation. Solar cells treated with the additive retained about 90% of their efficiency after 1,500 hours at 90°C, outperforming p…A new ionic liquid additive developed by researchers at Purdue and Emory universities could transform perovskite solar technology. The compound stabilises crystal growth and buried interfaces, dramatically slowing heat- and light-driven degradation. Solar cells treated with the additive retained about 90% of their efficiency after 1,500 hours at 90°C, outperforming p…

