Speaker
Description
Organic solar cells (OSCs) can be flexible, lightweight, and low-cost, but one of the major problems hindering the applications of OSCs is their susceptibility to degradation. Much research has been done on understanding the degradation mechanisms in OSCs, particularly under extreme and sustained environmental conditions, such as low and high temperatures. While these studies provide valuable insights, they do not fully reflect the conditions most organic solar cells encounter in real-world environments. In everyday situations, environmental factors such as temperature, humidity, and light are not static but fluctuate over time. Therefore, it is essential to understand how these devices degrade not only under constant stress but also when exposed to changing conditions. This work investigates how BTP-4F non-fullerene organic solar cells degrade when subjected to several environmental cycles. Advanced characterization techniques, including grazing-incidence X-ray scattering (GIXS) and atomic force microscopy (AFM), are employed to track both in-situ and ex-situ structural changes in the active layer of OSCs, providing detailed insights into the degradation mechanisms.
