Monolayer Amphiphiles Hydrophobicize MoS-Mediated Real-Time Water Removal for Efficient Waterproof Hydrogen Detection.

Ensuring water-fouling-free operation of semiconductor-based gas sensors is essential to maintaining their accuracy, reliability, and stability across diverse applications. Despite the use of hydrophobic strategies to prevent external water intrusion, addressing in situ-produced water transport during H detection remains a challenge. Herein, we construct a novel waterproof H sensor by integrating single-atom Ru self-assembly with monolayer amphiphiles embedded in MoS.