Kozawa, D and Li, SX and Ichihara, T and Rajan, AG and Gong, X and He, G and Koman, VB and Zeng, Y and Kuehne, M and Silmore, KS and Parviz, D and Liu, P and Liu, AT and Faucher, S and Yuan, Z and Warner, J and Blankschtein, D and Strano, MS (2023) Discretized hexagonal boron nitride quantum emitters and their chemical interconversion. In: Nanotechnology, 34 (11).
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Abstract
Quantum emitters in two-dimensional hexagonal boron nitride (hBN) are of significant interest because of their unique photophysical properties, such as single-photon emission at room temperature, and promising applications in quantum computing and communications. The photoemission from hBN defects covers a wide range of emission energies but identifying and modulating the properties of specific emitters remain challenging due to uncontrolled formation of hBN defects. In this study, more than 2000 spectra are collected consisting of single, isolated zero-phonon lines (ZPLs) between 1.59 and 2.25 eV from diverse sample types. Most of ZPLs are organized into seven discretized emission energies. All emitters exhibit a range of lifetimes from 1 to 6 ns, and phonon sidebands offset by the dominant lattice phonon in hBN near 1370 cm-1. Two chemical processing schemes are developed based on water and boric acid etching that generate or preferentially interconvert specific emitters, respectively. The identification and chemical interconversion of these discretized emitters should significantly advance the understanding of solid-state chemistry and photophysics of hBN quantum emission. © 2023 IOP Publishing Ltd.
| Item Type: | Journal Article |
|---|---|
| Publication: | Nanotechnology |
| Publisher: | NLM (Medline) |
| Additional Information: | The copyright for this article belongs to Institute of Physics |
| Keywords: | 2D nanomaterials; chemical modulation; single-photon emission |
| Department/Centre: | Division of Mechanical Sciences > Chemical Engineering |
| Date Deposited: | 31 Jan 2023 07:02 |
| Last Modified: | 31 Jan 2023 07:02 |
| URI: | https://eprints.iisc.ac.in/id/eprint/79617 |
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