Quantum-Grade Nanodiamonds from a Single-Step, Industrial-Scale Pressure and Temperature Process

Bao, Y; Gulka, M; Kumar, P; Copak, J; Balasubramanian, P; Mindarava, Y; Blinder, R; Olney-Fraser, M; Wen, H; Spanielova, H; Zeng, HZJ; Whitefield, B; Aharonovich, I; Hruby, J; Jelezko, F; Belnap, JD; Chang, SLY; Cigler, P

Quantum-Grade Nanodiamonds from a Single-Step, Industrial-Scale Pressure and Temperature Process

Bao, Y Gulka, M Kumar, P Copak, J Balasubramanian, P Mindarava, Y Blinder, R Olney-Fraser, M Wen, H Spanielova, H Zeng, HZJ Whitefield, B Aharonovich, I

Hruby, J Jelezko, F Belnap, JD Chang, SLY Cigler, P

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Publisher:: WILEY-V C H VERLAG GMBH
Publication Type:: Journal Article
Citation:: ADVANCED FUNCTIONAL MATERIALS

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Field	Value	Language
dc.contributor.author	Bao, Y
dc.contributor.author	Gulka, M
dc.contributor.author	Kumar, P
dc.contributor.author	Copak, J
dc.contributor.author	Balasubramanian, P
dc.contributor.author	Mindarava, Y
dc.contributor.author	Blinder, R
dc.contributor.author	Olney-Fraser, M
dc.contributor.author	Wen, H
dc.contributor.author	Spanielova, H
dc.contributor.author	Zeng, HZJ
dc.contributor.author	Whitefield, B
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935
dc.contributor.author	Hruby, J
dc.contributor.author	Jelezko, F
dc.contributor.author	Belnap, JD
dc.contributor.author	Chang, SLY
dc.contributor.author	Cigler, P
dc.date.accessioned	2025-10-15T04:23:26Z
dc.date.available	2025-10-15T04:23:26Z
dc.identifier.citation	ADVANCED FUNCTIONAL MATERIALS
dc.identifier.issn	1616-301X
dc.identifier.issn	1616-3028
dc.identifier.uri	http://hdl.handle.net/10453/190509
dc.description.abstract	Abstract Nanodiamonds with nitrogen vacancy (NV) centers are a promising workhorse for myriad applications, from quantum sensing to bioimaging. However, despite two decades of extensive research, their use remains limited by the lack of scalable methods to produce quantum‐grade material. While traditional NV‐production methods involve multi‐step irradiation and annealing processes, a fundamentally different approach is presented here based on a single‐step high‐temperature plastic deformation. It enables industrial‐scale yield of high‐quality luminescent nanodiamonds while significantly reducing production time and costs. Utilizing a unique cubic press apparatus capable of reaching higher temperatures and pressures, 50‐nm luminescent nanodiamonds with outstanding optical and spin properties are achieved in a single step from non‐luminescent material. Compared to electron‐irradiated nanodiamonds, i.e., common commercially available material, this method yields NV centers with significantly improved charge stability, T 1 relaxation times approaching 1 ms, and a ≈5‐fold enhancement in optical Rabi contrast. What this streamlined process produces in one week would require more than 40 years by current irradiation and annealing methods. Scalable, quantum‐grade nanodiamonds are thus unlocked, providing the missing link for their widespread adoption.
dc.language	English
dc.publisher	WILEY-V C H VERLAG GMBH
dc.relation	http://purl.org/au-research/grants/arc/CE200100010
dc.relation	http://purl.org/au-research/grants/arc/FT220100053
dc.relation.ispartof	ADVANCED FUNCTIONAL MATERIALS
dc.relation.isbasedon	10.1002/adfm.202520907
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	02 Physical Sciences, 03 Chemical Sciences, 09 Engineering
dc.subject.classification	Materials
dc.subject.classification	34 Chemical sciences
dc.subject.classification	40 Engineering
dc.subject.classification	51 Physical sciences
dc.title	Quantum-Grade Nanodiamonds from a Single-Step, Industrial-Scale Pressure and Temperature Process
dc.type	Journal Article
utslib.for	02 Physical Sciences
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 Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-10-15T04:23:23Z
pubs.publication-status	Published online

Abstract:

Abstract Nanodiamonds with nitrogen vacancy (NV) centers are a promising workhorse for myriad applications, from quantum sensing to bioimaging. However, despite two decades of extensive research, their use remains limited by the lack of scalable methods to produce quantum‐grade material. While traditional NV‐production methods involve multi‐step irradiation and annealing processes, a fundamentally different approach is presented here based on a single‐step high‐temperature plastic deformation. It enables industrial‐scale yield of high‐quality luminescent nanodiamonds while significantly reducing production time and costs. Utilizing a unique cubic press apparatus capable of reaching higher temperatures and pressures, 50‐nm luminescent nanodiamonds with outstanding optical and spin properties are achieved in a single step from non‐luminescent material. Compared to electron‐irradiated nanodiamonds, i.e., common commercially available material, this method yields NV centers with significantly improved charge stability, T 1 relaxation times approaching 1 ms, and a ≈5‐fold enhancement in optical Rabi contrast. What this streamlined process produces in one week would require more than 40 years by current irradiation and annealing methods. Scalable, quantum‐grade nanodiamonds are thus unlocked, providing the missing link for their widespread adoption.

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http://hdl.handle.net/10453/190509