Hydrogen Sensing Mechanism of WS2 Gas Sensors Analyzed with DFT and NAP-XPS. - Tomoya Minezaki; Peter Krüger; Fatima Ezahra Annanouch; Juan Casanova-Cháfer; Aanchal Alagh; Ignacio J. Villar-Garcia; Virginia Pérez-Dieste; Eduard Llobet; Carla Bittencourt (Sensors, 2023)