Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/41808
Title: | Long Spin Relaxation Times in CVD-Grown Nanodiamonds | Authors: | PROOTH, Jeroen PETROV, Michael SHMAKOVA, Alevtina GULKA, Michal Cigler, Petr D'HAEN, Jan BOYEN, Hans-Gerd NESLADEK, Milos |
Issue Date: | 2023 | Publisher: | WILEY | Source: | Advanced Quantum Technologies, 6 (12), (Art N° 2300004) | Abstract: | Currently, the primary applications of fluorescent nanodiamonds (FNDs) are in the area of biosensing, by using photoluminescence or spin properties of color centres, mainly represented by the nitrogen vacancy (NV) point defect. The sensitivity of NV-FNDs to external fields is, however, limited by crystallographic defects, which influence their key quantum state characteristics - the spin longitudinal (T1) and spin transversal (T2) relaxation and coherence times, respectively. This paper reports on utilizing an advanced FND growth technique consisting of heterogeneous nucleation on pre-engineered sites to create FNDs averaging around 60 nm in size, with mean longitudinal coherence times of 800 mu$\umu$s and a maximum over 1.8 ms, close to bulk theoretical values. This is a major, nearly ten-fold improvement over commercially available nanodiamonds for the same size range of 50 to 150 nm. Heavy-N doped nanodiamond shells, important for sensing events in nm proximity to the diamond surface, are fabricated and discussed in terms of re-nucleation and twinning on {111} crystal facets. The scalability issues are discussed in order to enable the production of FND volumes matching the needs of sensing applications. | Notes: | Prooth, J; Petrov, M; Shmakova, A; D'Haen, J; Boyen, HG; Nesladek, M (corresponding author), Hasselt Univ, Inst Mat Res IMO, Wetenschapspk 1, B-3590 Diepenbeek, Belgium.; Prooth, J; Nesladek, M (corresponding author), IMOMEC, imec, Kapeldreef 75, B-3001 Heverlee, Belgium.; Gulka, M; Cigler, P (corresponding author), CAS, Inst Organ Chem & Biochem, Flemingovo Nam 2, Prague 16610, Czech Republic.; Nesladek, M (corresponding author), Czech Tech Univ, FMBI, Sitna 3105, Kladno, Czech Republic. jeroen.prooth@uhasselt.be; michael.petrov@uhasselt.be; alevtina.shmakova@uhasselt.be; michal.gulka@uochb.cas.cz; petr.cigler@uochb.cas.cz; Jan.dhaen@uhasselt.be; hansgerd.boyen@uhasselt.be; milos.nesladek@uhasselt.be |
Keywords: | chemical vapor deposition;fluorescent nanodiamonds;nitrogen-vacancy (NV) spin relaxometry;quantum sensing | Document URI: | http://hdl.handle.net/1942/41808 | e-ISSN: | 2511-9044 | DOI: | 10.1002/qute.202300004 | ISI #: | 001086207300001 | Rights: | 2023 The Authors. Advanced Quantum Technologies published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Adv Quantum Tech - 2023 - Prooth - Long Spin Relaxation Times in CVD‐Grown Nanodiamonds.pdf | Published version | 2.07 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.