Interface-protected subsurface vacancies for room-temperature sub-ppm SO2 and NO2 detection in MoS2, MoSe2, and MoTe2via electron irradiation.

Transition metal dichalcogenides (TMDs) are promising candidates for room-temperature gas sensing, but limited intrinsic adsorption hampers trace-level detection. Here, we introduce a scalable defect-engineering route that creates subsurface chalcoge…

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