Advancements in Fabricating Atomically-Precise Quantum Antidots through Vacancy Self-Assembly

Scientists at the National University of Singapore have achieved a breakthrough in fabricating atomically precise quantum antidots (QAD) using self-assembled single vacancies (SVs) in a two-dimensional transition metal dichalcogenide (TMD). By strategically introducing antidot patterns into carefully designed lattices, they created artificial structures with unique quantum phenomena and transport properties. The QADs, which can be used for quantum information technologies, were fabricated through the self-assembly of SVs into a regular pattern. The structures exhibited robustness against environmental influences and could potentially advance various material technologies.