4.8 Article

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

期刊

NANO LETTERS
卷 21, 期 8, 页码 3626-3632

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.1c00685

关键词

hBN; single-photon emission; nanophotonics; 2D materials; nanopillar array

资金

  1. Australian Research Council [DP180100077, CE200100010, DP190101058]
  2. Asian Office of Aerospace Research and Development [FA2386-20-1-4014]

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The fabrication of large-scale arrays of single-photon emitters in hexagonal boron nitride (hBN) shows promising results in isolating single defects and achieving near-unity yield of a single emitter at each pillar site with a diameter of around 250 nm. These results pave the way for scalability and high throughput fabrication of single-photon emitters for advanced quantum photonic applications.
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 similar to 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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