Oxford scientists develop non-toxic solvent for perovskite solar cells
Perovskite solar cell, Oxford University
Scientists at Oxford University have developed a solvent with reduced toxicity that can be used in the production of perovskite solar cells.
The achievement overcomes one of the barriers to the commercialisation of the promising technology, the university said on Wednesday. Nakita Noel, lead author of the study, explained that the three main solvents currently used in the manufacturing of perovskite solar cells are all toxic.
The clean solvent developed by the researchers has a low boiling point and low viscosity. It quickly crystallises perovskite films at room temperature and could be used to help coat large solar panels with the material.
"While we are probably still a few years from seeing perovskite-based solar panels on people's roofs, this is a big step along the way," said study co-author Bernard Wenger.
The paper, A Low Viscosity, Low Boiling Point, Clean Solvent System for the Rapid Crystallisation of Highly Specular Perovskite Films, was published in the Royal Society of Chemistry journal Energy & Environmental Science.