Optimizing the Performance of Lead-free Perovskite Solar Cells through Simulation, Fabrication, and Characterization

The performance of perovskite solar cells has seen a significant increase in the recent past. A broad range of low-cost fabrication methods and device concepts, together with comparable higher efficiencies make perovskite solar cells an ideal candidate to be considered for commercialization and mass production. However, the stability and the toxicity of the materials involved in the high efficiency Perovskite solar cells are major obstacles for the large-scale deployment of this technology. Using SCAPS-1D software we designed optimal lead-free device structures reaching over 30% efficiency. Experimentally we fabricated the individual lead-free Perovskite layers and characterized them using UV-Vis, XRD and SEM. Optimized layers were used in complete devise structures and efficiencies over 20% were achieved on small area devices. This talk will discuss the optimal devise structures for lead-free Perovskites, their performance and the opportunities for growth for Perovskites.