Efficient and Stable Organic Photovoltaics

Organic photovoltaics (OPVs) show great potential as a complementary technology to traditional silicon-based photovoltaics due to their lightweight, flexible, and potentially low-cost properties. However, they face challenges such as poor operational stability and lower power conversion efficiency (PCE) compared to commercial solar cell technologies. In recent years, there have been significant advancements in materials and cell architectures to enhance the PCE of OPVs. This presentation will focus on practical new strategies to improve OPVs' efficiency and operational stability. Specifically, it will discuss the innovative use of charge-extracting interlayers, which help increase the efficiency of next-generation OPVs. The benefits of these interlayers include a higher open-circuit voltage, reduced recombination losses, and improved operational stability. Additionally, recent progress in utilizing molecular dopants to enhance the PCE of advanced OPVs will be presented, demonstrating their effectiveness in improving the cell's fill factor and short-circuit current density. Moreover, it will be shown that combining innovative charge-extracting interlayers with molecular dopants and advanced functional material formulations can lead to even more significant improvements in efficiency and device stability.