Perovskite Solar Cells: Patterned Wettability Surface for Competition‐Driving Large‐Grained Perovskite Solar Cells (Adv. Energy Mater. 25/2019)

In article number 1900838, Mingzhu Li, Yanlin Song and co-workers report a competitive perovskite grain growth approach via a micro-contact print (MicroCP) method with CD discs as templates for printing a wettability-patterned substrate, to achieve a large-grained perovskite and avoid discontinuous perovskite films caused by the low wettability of substrates, resulting in efficiencies over 20% for the MicroCP perovskite solar cells.