Krebs et al. Scalable, ambient atmosphere roll-to-roll manufacture of encapsulated large area, fl exible organic tandem solar cell modules

Flexible roll-coated and rigid organic PV modules, solution processed on a large area, are reported with efficiencies of 4.2% and 5.3%, respectively.

We demonstrate an innovative solution-processing fabrication route for organic and perovskite solar modules via depth-selective laser patterning of an adhesive top electrode. This yields unprecedented power conversion efficiencies of up to 5.3% and 9.8%, respectively.We employ a PEDOT:PSS-Ag nanowire composite electrode and depth-resolved post-patterning through beforehand laminated devices using ultra-fast laser scribing. This process affords low-loss interconnects of consecutive solar cells while overcoming typical alignment constraints. Our strategy informs a highly simplified and universal approach for solar module fabrication that could be extended to other thin-film photovoltaic technologies.