Scalable and Deterministic Fabrication of Quantum Emitter Arrays from Hexagonal Boron Nitride.

American Chemical Society
Publication Type:
Journal Article
Nano Letters: a journal dedicated to nanoscience and nanotechnology, 2021, 21, (8), pp. 3626-3632
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We demonstrate the fabrication of large-scale arrays of single-photon emitters (SPEs) in hexagonal boron nitride (hBN). Bottom-up growth of hBN onto nanoscale arrays of dielectric pillars yields corresponding arrays of hBN emitters at the pillar sites. Statistical analysis shows that the pillar diameter is critical for isolating single defects, and diameters of ∼250 nm produce a near-unity yield of a single emitter at each pillar site. Our results constitute a promising route toward spatially controlled generation of hBN SPEs and provide an effective and efficient method to create large-scale SPE arrays. The results pave the way to scalability and high throughput fabrication of SPEs for advanced quantum photonic applications.
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