High-performance stretchable organic solar cells enabled by cyclic nanoring additives

Abstract

Conjugated carbon cyclic nanorings ([6]CPP) were introduced as solid additives into PM6:Y6 active layers to enhance film stretchability without sacrificing photovoltaic performance. Intrinsic stretchable organic solar cells (OSCs) with 5 wt% [6]CPP retained about 77% of their initial PCE after 25% tensile strain, demonstrating significantly improved mechanical durability compared to devices without additives.