FURI | Fall 2025

Manufacturing Wafer-scale Perovskite Films on Nanotextured Silicon for High-efficiency Tandem Photovoltaics

This project focuses on optimizing the parameters of printable metal halide perovskite film deposition onto 166 mm by 166 mm silicon nanotextured wafers. Nanotextured wafers use <1 μm pyramids to increase the film’s surface area and thus its light absorption to create efficient cells. The goal is to produce uniform high-quality films with a controlled thickness using a rapid open-air blade coating process. This study tunes ink concentration and incorporates additives to improve film quality, with a focus on optimizing coverage and thickness homogeneity. The long-term outcome is to develop a reliable, scalable fabrication process for producing consistent, high-quality perovskite layers at the wafer scale that advance the performance and manufacturability of perovskite-silicon tandem solar cells.