Researchers at Imperial College London have confirmed the mechanisms that cause the rapid degradation of perovskite batteries. The team’s findings will pave the way for more efficient, long-lasting solar cells. Previous studies at the Imperial College in London showed that "superoxide" can destroy perovskite materials. Now, researchers at Imperial College London have discovered the mechanism of superoxide formation and destruction. When light strikes the perovskite, the released electrons will react with oxygen to form superoxide. The perovskite nanostructure gaps occupied by iodide ions contribute to the formation of superoxide, and superoxide also utilizes these iodine-free defects. Researchers can extend the life of perovskite batteries by supplementing additional iodide ions, but better solutions may require scientists to rethink the perovskite manufacturing process to prevent defects from forming. Nicholas Aristidou, chief chemist at the Imperial College London, said at the press conference: “After confirming the role of iodide ion defects in superoxide formation, we have succeeded in providing stable materials by filling extra vacancies with extra iodide ions. By controlling the types and densities of existing defects, we have created new ways to optimize materials to improve their stability." Currently, engineers use glass to prevent perovskite cells from oxidation, but this strategy limits the versatility of flexible perovskite materials. Saif Haque, a chemist at Imperial College London, commented that “glass packaging limits transportation and increases the weight and cost of the battery. Improving the perovskite battery material itself is the best solution.†The latest research results are published in the journal Nature Communications, so improving perovskite battery materials is not remote. Haque said "We have now provided a way to understand this process at the atomic level and allow for designs that improve the stability of device devices." CPG Generator 5 Series:power Range 360KWe-550KWe/50&60HZ Generator,360KWe-550KWe CCSN POWER GENERATION INC.(Engine is a subsidiary of CCSN) , https://www.ccsnengine.com
Atomic level research drives the development of more sustainable solar cells