Cryogenic Thermal Shock Effects on Optical Properties of Quantum Emitters in Hexagonal Boron Nitride.

Mai, TNA; Ali, S; Hossain, MS; Chen, C; Ding, L; Chen, Y; Solntsev, AS; Mou, H; Xu, X; Medhekar, N; Tran, TT

Cryogenic Thermal Shock Effects on Optical Properties of Quantum Emitters in Hexagonal Boron Nitride.

Mai, TNA Ali, S Hossain, MS Chen, C Ding, L Chen, Y Solntsev, AS Mou, H Xu, X

Medhekar, N Tran, TT

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Publisher:: AMER CHEMICAL SOC
Publication Type:: Journal Article
Citation:: ACS Appl Mater Interfaces, 2024, 16, (15), pp. 19340-19349
Issue Date:: 2024-04-17

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Field	Value	Language
dc.contributor.author	Mai, TNA
dc.contributor.author	Ali, S
dc.contributor.author	Hossain, MS
dc.contributor.author	Chen, C
dc.contributor.author	Ding, L
dc.contributor.author	Chen, Y
dc.contributor.author	Solntsev, AS
dc.contributor.author	Mou, H
dc.contributor.author	Xu, X https://orcid.org/0000-0002-2598-3766
dc.contributor.author	Medhekar, N
dc.contributor.author	Tran, TT
dc.date.accessioned	2024-05-03T04:07:04Z
dc.date.available	2024-05-03T04:07:04Z
dc.date.issued	2024-04-17
dc.identifier.citation	ACS Appl Mater Interfaces, 2024, 16, (15), pp. 19340-19349
dc.identifier.issn	1944-8244
dc.identifier.issn	1944-8252
dc.identifier.uri	http://hdl.handle.net/10453/178600
dc.description.abstract	Solid-state quantum emitters are vital building blocks for quantum information science and quantum technology. Among various types of solid-state emitters discovered to date, color centers in hexagonal boron nitride have garnered tremendous traction in recent years, thanks to their environmental robustness, high brightness, and room-temperature operation. Most recently, these quantum emitters have been employed for satellite-based quantum key distribution. One of the most important requirements to qualify these emitters for space-based applications is their optical stability against cryogenic thermal shock. Such an understanding has, however, remained elusive to date. Here, we report on the effects caused by such thermal shock that induces random, irreversible changes in the spectral characteristics of the quantum emitters. By employing a combination of structural characterizations and density functional calculations, we attribute the observed changes to lattice strain caused by cryogenic temperature shock. Our study sheds light on the stability of the quantum emitters under extreme conditions─similar to those countered in outer space.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	AMER CHEMICAL SOC
dc.relation	http://purl.org/au-research/grants/arc/DE220100487
dc.relation.ispartof	ACS Appl Mater Interfaces
dc.relation.isbasedon	10.1021/acsami.3c18032
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.rights	This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Mater Interfaces copyright 2023 © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsami.3c18032
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Nanoscience & Nanotechnology
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	Cryogenic Thermal Shock Effects on Optical Properties of Quantum Emitters in Hexagonal Boron Nitride.
dc.type	Journal Article
utslib.citation.volume	16
utslib.location.activity	United States
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
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/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/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-04-07T00:00:00+1000Z
dc.date.updated	2024-05-03T04:07:02Z
pubs.issue	15
pubs.publication-status	Published
pubs.volume	16
utslib.citation.issue	15

Abstract:

Solid-state quantum emitters are vital building blocks for quantum information science and quantum technology. Among various types of solid-state emitters discovered to date, color centers in hexagonal boron nitride have garnered tremendous traction in recent years, thanks to their environmental robustness, high brightness, and room-temperature operation. Most recently, these quantum emitters have been employed for satellite-based quantum key distribution. One of the most important requirements to qualify these emitters for space-based applications is their optical stability against cryogenic thermal shock. Such an understanding has, however, remained elusive to date. Here, we report on the effects caused by such thermal shock that induces random, irreversible changes in the spectral characteristics of the quantum emitters. By employing a combination of structural characterizations and density functional calculations, we attribute the observed changes to lattice strain caused by cryogenic temperature shock. Our study sheds light on the stability of the quantum emitters under extreme conditions─similar to those countered in outer space.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/178600