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Polarization and Localization of Single-Photon Emitters in Hexagonal Boron Nitride Wrinkles

Cited 32 time in Web of Science Cited 37 time in Scopus
Authors

Yim, Donggyu; Yu, Mihyang; Noh, Gichang; Lee, Jieun; Seo, Hosung

Issue Date
2020-08
Publisher
American Chemical Society
Citation
ACS Applied Materials and Interfaces, Vol.12 No.32, pp.36362-36369
Abstract
Color centers in two-dimensional hexagonal boron nitride (h-BN) have recently emerged as stable and bright single-photon emitters (SPEs) operating at room temperature. In this study, we combine theory and experiment to show that vacancy-based SPEs selectively form at nanoscale wrinkles in h-BN with its optical dipole preferentially aligned to the wrinkle direction. By using density functional theory calculations, we find that the wrinkle's curvature plays a crucial role in localizing vacancy-based SPE candidates and aligning the defect's symmetry plane to the wrinkle direction. By performing optical measurements on SPEs created in h-BN single-crystal flakes, we experimentally confirm the wrinkle-induced generation of SPEs and their polarization alignment to the wrinkle direction. Our results not only provide a new route to controlling the atomic position and the optical property of the SPEs but also revealed the possible crystallographic origin of the SPEs in h-BN, greatly enhancing their potential for use in solid-state quantum photonics and quantum information processing.
ISSN
1944-8244
URI
https://hdl.handle.net/10371/201868
DOI
https://doi.org/10.1021/acsami.0c09740
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  • College of Natural Sciences
  • Department of Physics and Astronomy
Research Area Condensed Matter Physics, Nanoscale Physics and Photonics, 나노 물리와 나노 광자학, 응집 물질 물리

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