Industrial-scale roll-to-roll processing of organic photovoltaics (OPVs) requires photoactive layers ≥300 nm for manufacturability and mechanical robustness, yet state-of-the-art high-efficiency systems remain confined to 80-120 nm due to intrinsic exciton diffusion and charge transport limitations. To resolve this fundamental thickness-efficiency trade-off, monolayer MnPS(3) nanosheet (1-2 nm) via liquid-phase exfoliation are engineered to extend exciton diffusion lengths and out-of-plane charge mobility, as validated through multimodal chara...
