Hydrophobic Carbon Nanosheets as Passivation Layer for Perovskite Solar Cell with High Efficiency and Stability

This project will develop a stable, low-cost perovskite solar cell by with water-repellent, three-dimensional carbon nanosheets as electrode materials. The aim is to demonstrate that the nanosheets can improve the cells' lifetime stability in humid operating conditions while maintaining 20% conversion efficiency. The project team will explore factors that affect cell lifetime, investigate strategies to synthesize highly efficient electrode materials; and develop mini modules. Then the team will make a prototype of a perovskite solar cell that can achieve a power conversion efficiency greater than 20% and high stability over 1,000 hours, with final efficiency greater than 18%.