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An interesting article that offers a binger picture of all these exciting activities in the semiconductor field: How real is America’s chipmaking renaissance? https://www.economist.com/business/2023/08/07/how-real-is-americas-chipmaking-renaissance
Not any time soon :). Monolayer TMD (e.g., MoS2) is much more stable than silicene, but not so great either. Its mobility is good (a few hundred cm^2/(Vs)) but not that great.
Silicene and Germanene are highly unstable in air. Those appearing properties were mostly reported in high vacuum. Apparently the stability as well as the properties of the ultra-thin semiconductors depend on the substrates on which they were deposited. They were typically deposited on metallic...
