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Controlled generation of luminescent centers in hexagonal boron nitride by irradiation engineering

Fischer, M. ; Caridad, J. M. LU ; Sajid, A. ; Ghaderzadeh, S. ; Ghorbani-Asl, M. ; Gammelgaard, L. ; Bøggild, P. ; Thygesen, K. S. ; Krasheninnikov, A. V. and Xiao, S. , et al. (2021) In Science Advances 7(8).
Abstract

Luminescent centers in the two-dimensional material hexagonal boron nitride have the potential to enable quantum applications at room temperature. To be used for applications, it is crucial to generate these centers in a controlled manner and to identify their microscopic nature. Here, we present a method inspired by irradiation engineering with oxygen atoms. We systematically explore the influence of the kinetic energy and the irradiation fluence on the generation of luminescent centers. We find modifications of their density for both parameters, while a fivefold enhancement is observed with increasing fluence. Molecular dynamics simulations clarify the generation mechanism of these centers and their microscopic nature. We infer that... (More)

Luminescent centers in the two-dimensional material hexagonal boron nitride have the potential to enable quantum applications at room temperature. To be used for applications, it is crucial to generate these centers in a controlled manner and to identify their microscopic nature. Here, we present a method inspired by irradiation engineering with oxygen atoms. We systematically explore the influence of the kinetic energy and the irradiation fluence on the generation of luminescent centers. We find modifications of their density for both parameters, while a fivefold enhancement is observed with increasing fluence. Molecular dynamics simulations clarify the generation mechanism of these centers and their microscopic nature. We infer that VNCB and V-B are the most likely centers formed. Ab initio calculations of their optical properties show excellent agreement with our experiments. Our methodology generates quantum emitters in a controlled manner and provides insights into their microscopic nature.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Science Advances
volume
7
issue
8
article number
eabe7138
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • pmid:33597249
  • scopus:85101380994
ISSN
2375-2548
DOI
10.1126/sciadv.abe7138
language
English
LU publication?
yes
id
12ef312a-7d7d-4d4a-b2e1-4d25e9fd3917
date added to LUP
2021-03-09 13:54:31
date last changed
2025-03-22 17:02:21
@article{12ef312a-7d7d-4d4a-b2e1-4d25e9fd3917,
  abstract     = {{<p>Luminescent centers in the two-dimensional material hexagonal boron nitride have the potential to enable quantum applications at room temperature. To be used for applications, it is crucial to generate these centers in a controlled manner and to identify their microscopic nature. Here, we present a method inspired by irradiation engineering with oxygen atoms. We systematically explore the influence of the kinetic energy and the irradiation fluence on the generation of luminescent centers. We find modifications of their density for both parameters, while a fivefold enhancement is observed with increasing fluence. Molecular dynamics simulations clarify the generation mechanism of these centers and their microscopic nature. We infer that VNCB and V-B are the most likely centers formed. Ab initio calculations of their optical properties show excellent agreement with our experiments. Our methodology generates quantum emitters in a controlled manner and provides insights into their microscopic nature.</p>}},
  author       = {{Fischer, M. and Caridad, J. M. and Sajid, A. and Ghaderzadeh, S. and Ghorbani-Asl, M. and Gammelgaard, L. and Bøggild, P. and Thygesen, K. S. and Krasheninnikov, A. V. and Xiao, S. and Wubs, M. and Stenger, N.}},
  issn         = {{2375-2548}},
  language     = {{eng}},
  number       = {{8}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science Advances}},
  title        = {{Controlled generation of luminescent centers in hexagonal boron nitride by irradiation engineering}},
  url          = {{http://dx.doi.org/10.1126/sciadv.abe7138}},
  doi          = {{10.1126/sciadv.abe7138}},
  volume       = {{7}},
  year         = {{2021}},
}