Researchers find safer, greener way to make solar cells ANI | Updated: May 20, 2021 22:53 IST London [UK], May 20 (ANI): Scientists at Swansea University, SPECIFIC Innovation and Knowledge Centre have found a way to replace the toxic, unsustainable solvents currently needed to make the next generation of solar technology. Printed carbon perovskite solar cells have been described as a likely front runner to the market because they are extremely efficient at converting light to electricity, cheap and easy to make. A major barrier to the large-scale manufacture and commercialisation of these cells is the solvents used to control the crystallisation of the perovskite during fabrication: this is because they are made from unsustainable materials and are banned in many countries due to their toxicity and psychoactive effects.