Where nanoscale meets kilometer scale: perovskite material science to enable large-area solar power
Prof. Dr. Bruno Ehrler
Perovskite semiconductors are likely one of the key materials for the next generation of solar cells. They show remarkable properties, for example efficient light absorption and emission, despite relatively dirty precursor materials and processing conditions. At the same time, they degrade relatively quickly. The origin of both, efficiency and instability lies in their microscopic properties. I will discuss how the structure relates to ion migration and trap states, both key factors for efficiency and stability. Finally, I will give an outlook on new opportunities that perovskite solar cells open up, and which hurdles still need to be overcome to get there.