Patternable Large‐Scale Molybdenium Disulfide Atomic Layers Grown by Gold‐Assisted Chemical Vapor Deposition

A novel way to grow MoS 2 on a large scale with uniformity and in desired patterns is developed. We use Au film as a catalyst on which [Mo(CO) 6 ] vapor decomposes to form a Mo‐Au surface alloy that is an ideal Mo reservoir for the growth of atomic layers of MoS 2 . Upon exposure to H 2 S, this surface alloy transforms into a few layers of MoS 2 , which can be isolated and transferred on an arbitrary substrate. By simply patterning Au catalyst film by conventional lithographic techniques, MoS 2 atomic layers in desired patterns can be fabricated.