Room Temperature Quantum Emitters in van der Waals α-MoO<sub>3</sub>.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 39801081.
- Also identified by DOI 10.1021/acs.nanolett.4c05594 and PMC identifier 11760152.
- Licence recorded as CC BY-NC-ND.
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Abstract
Quantum emitters in solid-state materials are highly promising building blocks for quantum information processing and communication science. Recently, single-photon emission from van der Waals materials has been reported in transition metal dichalcogenides and hexagonal boron nitride, exhibiting the potential to realize photonic quantum technologies in two-dimensional materials. Here, we report the generation of room temperature single-photon emission from exfoliated and thermally annealed single crystals of van der Waals α-MoO<sub>3</sub>. The second-order correlation function measurement displays clear photon antibunching, while the luminescence intensity exceeds 0.4 Mcts/s and remains stable under laser excitation. The theoretical calculation suggests that an oxygen vacancy defect is a possible candidate for the observed emitters. Together with photostability and brightness, quantum emitters in α-MoO<sub>3</sub> provide a new avenue to realize photon-based quantum information science in van der Waals materials.