The University of Toronto has broken the efficiency record for solar cells by using both organic and inorganic chemistry. Co-leader Alex Ip said “By introducing small chlorine atoms immediately after synthesizing the dots, we’re able to patch the previously unreachable nooks and crannies that lead to electron traps. We follow that by using short organic linkers to bind quantum dots in the film closer together.” The new efficiency record? 7 percent.
[Source: University of Toronto]