Jangwon Seo and co-workers have successfully demonstrated the gravure printing of methylammonium lead iodide for flexible perovskite solar cells. By optimizing the precursor solutions and processing parameters, they achieved a power conversion efficiency (PCE) of 17.2% in the all-printed device. Additionally, they showcased the roll-to-roll (R2R) process of gravure printing, with a partially R2R processed device reaching a PCE of 9.7%. This advancement in gravure printing technology represents a significant step forward in the fabrication of efficient and flexible perovskite solar cells.-Scientific Journal cover design by scapiens

https://onlinelibrary.wiley.com/doi/abs/10.1002/advs.201970044