Transition metal dichalcogenides, formed by a combination of chalcogens, e.g., sulfur or selenium, and transition metals, e.g., molybdenum or tungsten, attract great attention as next-generation two-dimensional materials due to their unique electronic and optical properties. However, the current processes of producing printable single-layer chalcogenides are time consuming, the yield is poor, and the flakes produced are of submicron size. A team of scientists from the National University of Singapore (NUS) led by Prof.
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