Spin defects in hexagonal boron nitride for strain sensing on nanopillar arrays.

Yang, T; Mendelson, N; Li, C; Gottscholl, A; Scott, J; Kianinia, M; Dyakonov, V; Toth, M; Aharonovich, I

Spin defects in hexagonal boron nitride for strain sensing on nanopillar arrays.

Yang, T

Mendelson, N Li, C

Gottscholl, A Scott, J

Kianinia, M

Dyakonov, V Toth, M

Aharonovich, I

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Publisher:: Royal Society of Chemistry
Publication Type:: Journal Article
Citation:: Nanoscale, 2022, 14, (13), pp. 5239-5244
Issue Date:: 2022-03-31

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Field	Value	Language
dc.contributor.author	Yang, T https://orcid.org/0000-0002-8683-2072
dc.contributor.author	Mendelson, N
dc.contributor.author	Li, C https://orcid.org/0000-0002-8424-9721
dc.contributor.author	Gottscholl, A
dc.contributor.author	Scott, J https://orcid.org/0000-0002-3972-4351
dc.contributor.author	Kianinia, M https://orcid.org/0000-0003-4073-1492
dc.contributor.author	Dyakonov, V
dc.contributor.author	Toth, M https://orcid.org/0000-0003-1564-4899
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.date.accessioned	2022-11-17T02:42:07Z
dc.date.available	2022-11-17T02:42:07Z
dc.date.issued	2022-03-31
dc.identifier.citation	Nanoscale, 2022, 14, (13), pp. 5239-5244
dc.identifier.issn	2040-3364
dc.identifier.issn	2040-3372
dc.identifier.uri	http://hdl.handle.net/10453/163541
dc.description.abstract	Two-dimensional hexagonal boron nitride (hBN) has attracted much attention as a platform for studies of light-matter interactions at the nanoscale, especially in quantum nanophotonics. Recent efforts have focused on spin defects, specifically negatively charged boron vacancy (VB-) centers. Here, we demonstrate a scalable method to enhance the VB- emission using an array of SiO2 nanopillars. We achieve a 4-fold increase in photoluminescence (PL) intensity, and a corresponding 4-fold enhancement in optically detected magnetic resonance (ODMR) contrast. Furthermore, the VB- ensembles provide useful information about the strain fields associated with the strained hBN at the nanopillar sites. Our results provide an accessible way to increase the emission intensity as well as the ODMR contrast of the VB- defects, while simultaneously form a basis for miniaturized quantum sensors in layered heterostructures.
dc.format	Electronic
dc.language	eng
dc.publisher	Royal Society of Chemistry
dc.relation	http://purl.org/au-research/grants/arc/CE200100010
dc.relation.ispartof	Nanoscale
dc.relation.isbasedon	10.1039/d1nr07919k
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 10 Technology
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Spin defects in hexagonal boron nitride for strain sensing on nanopillar arrays.
dc.type	Journal Article
utslib.citation.volume	14
utslib.location.activity	England
utslib.for	02 Physical Sciences
utslib.for	03 Chemical Sciences
utslib.for	10 Technology
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - MTEE - Research Centre Materials and Technology for Energy Efficiency
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-11-17T02:42:05Z
pubs.issue	13
pubs.publication-status	Published
pubs.volume	14
utslib.citation.issue	13

Abstract:

Two-dimensional hexagonal boron nitride (hBN) has attracted much attention as a platform for studies of light-matter interactions at the nanoscale, especially in quantum nanophotonics. Recent efforts have focused on spin defects, specifically negatively charged boron vacancy (VB-) centers. Here, we demonstrate a scalable method to enhance the VB- emission using an array of SiO2 nanopillars. We achieve a 4-fold increase in photoluminescence (PL) intensity, and a corresponding 4-fold enhancement in optically detected magnetic resonance (ODMR) contrast. Furthermore, the VB- ensembles provide useful information about the strain fields associated with the strained hBN at the nanopillar sites. Our results provide an accessible way to increase the emission intensity as well as the ODMR contrast of the VB- defects, while simultaneously form a basis for miniaturized quantum sensors in layered heterostructures.

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http://hdl.handle.net/10453/163541