SPLTRAK Abstract Submission
Precursor Ink Design for Scalable Fabrication of Perovskite Solar Cells via High-Speed Flexography
Julia E Huddy, Youxiong Ye, William J Scheideler
Dartmouth College, Hanover, NH, United States

Perovskites could deliver terawatt-scale photovoltaic capacity via low-cost manufacturing, but upscaling demands more reliable, large-area deposition methods for transport layers (CTLs) and absorbers. We present a method for scaling ultrathin NiOx hole transport layers and double cation perovskite absorbers using high-speed flexography for the fastest (60 m/min) reported fabrication of inorganic CTLs and perovskites. By engineering precursor rheology, NiOx HTLs and MA0.6FA0.4PbI3 absorbers were printed with high uniformity and ultralow pinhole densities, improving photovoltaic performance (PCE > 15%) over spin-coated devices. These results guide ink design for scalable solar module manufacturing and reveal opportunities to enhance large area performance.