Facile Production of Hexagonal Boron Nitride Nanoparticles by Cryogenic Exfoliation
- Publication Type:
- Journal Article
- Nano Letters, 2019, 19 (8), pp. 5417 - 5422
- Issue Date:
|Facile Production of Hexagonal Boron Nitride Nanoparticles by Cryogenic Exfoliation.pdf||Published Version||3.24 MB|
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© 2019 American Chemical Society. Fluorescent nanoparticles with optically robust luminescence are imperative to applications in imaging and labeling. Here we demonstrate that hexagonal boron nitride (hBN) nanoparticles can be reliably produced using a scalable cryogenic exfoliation technique with sizes below 10 nm. The particles exhibit bright fluorescence generated by color centers that act as atomic-size quantum emitters. We analyze their optical properties, including emission wavelength, photon-statistics, and photodynamics, and show that they are suitable for far-field super-resolution fluorescence nanoscopy. Our results provide a foundation for exploration of hBN nanoparticles as candidates for bioimaging, labeling, as well as biomarkers that are suitable for quantum sensing.
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