Bottom‐Up Synthesis of Hexagonal Boron Nitride Nanoparticles with Intensity‐Stabilized Quantum Emitters

Chen, Y; Xu, X; Li, C; Bendavid, A; Westerhausen, MT; Bradac, C; Toth, M; Aharonovich, I; Tran, TT

Bottom‐Up Synthesis of Hexagonal Boron Nitride Nanoparticles with Intensity‐Stabilized Quantum Emitters

Chen, Y Xu, X

Li, C Bendavid, A Westerhausen, MT Bradac, C

Toth, M

Aharonovich, I

Tran, TT

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Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Small, 2021, 17, (17), pp. 1-7
Issue Date:: 2021-03-17

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Field	Value	Language
dc.contributor.author	Chen, Y
dc.contributor.author	Xu, X https://orcid.org/0000-0002-2598-3766
dc.contributor.author	Li, C
dc.contributor.author	Bendavid, A
dc.contributor.author	Westerhausen, MT
dc.contributor.author	Bradac, C https://orcid.org/0000-0002-6673-7238
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.contributor.author	Tran, TT
dc.date.accessioned	2022-01-17T01:21:57Z
dc.date.available	2022-01-17T01:21:57Z
dc.date.issued	2021-03-17
dc.identifier.citation	Small, 2021, 17, (17), pp. 1-7
dc.identifier.issn	1613-6810
dc.identifier.issn	1613-6829
dc.identifier.uri	http://hdl.handle.net/10453/153194
dc.description.abstract	Fluorescent nanoparticles are widely utilized in a large range of nanoscale imaging and sensing applications. While ultra-small nanoparticles (size ≤10 nm) are highly desirable, at this size range, their photostability can be compromised due to effects such as intensity fluctuation and spectral diffusion caused by interaction with surface states. In this article, a facile, bottom-up technique for the fabrication of sub-10-nm hexagonal boron nitride (hBN) nanoparticles hosting photostable bright emitters via a catalyst-free hydrothermal reaction between boric acid and melamine is demonstrated. A simple stabilization protocol that significantly reduces intensity fluctuation by ≈85% and narrows the emission linewidth by ≈14% by employing a common sol-gel silica coating process is also implemented. This study advances a promising strategy for the scalable, bottom-up synthesis of high-quality quantum emitters in hBN nanoparticles.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Wiley
dc.relation	http://purl.org/au-research/grants/arc/DP190101058
dc.relation	http://purl.org/au-research/grants/arc/CE200100010
dc.relation.ispartof	Small
dc.relation.isbasedon	10.1002/smll.202008062
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Bottom‐Up Synthesis of Hexagonal Boron Nitride Nanoparticles with Intensity‐Stabilized Quantum Emitters
dc.type	Journal Article
utslib.citation.volume	17
utslib.location.activity	Germany
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-01-17T01:21:54Z
pubs.issue	17
pubs.publication-status	Published
pubs.volume	17
utslib.citation.issue	17

Abstract:

Fluorescent nanoparticles are widely utilized in a large range of nanoscale imaging and sensing applications. While ultra-small nanoparticles (size ≤10 nm) are highly desirable, at this size range, their photostability can be compromised due to effects such as intensity fluctuation and spectral diffusion caused by interaction with surface states. In this article, a facile, bottom-up technique for the fabrication of sub-10-nm hexagonal boron nitride (hBN) nanoparticles hosting photostable bright emitters via a catalyst-free hydrothermal reaction between boric acid and melamine is demonstrated. A simple stabilization protocol that significantly reduces intensity fluctuation by ≈85% and narrows the emission linewidth by ≈14% by employing a common sol-gel silica coating process is also implemented. This study advances a promising strategy for the scalable, bottom-up synthesis of high-quality quantum emitters in hBN nanoparticles.

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http://hdl.handle.net/10453/153194