Here we will discuss our novel anisotropic wet-etching method that allows scalable fabrication of TMD metamaterials with atomic precision, combined with traditional nanolithography techniques. We show that TMDs can be etched along certain crystallographic axes, such that the obtained edges are atomically sharp and exclusively zigzag-terminated. This allows us to fabricate interesting hexagonal nanostructures of predefined order and complexity, including a few nanometer thin nanoribbons and nanojunctions.
 B. Munkhbat et al, Nature Comm., 11, 4604 (2020)
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