دورية أكاديمية
Long Spin Relaxation Times in CVD-Grown Nanodiamonds
| العنوان: | Long Spin Relaxation Times in CVD-Grown Nanodiamonds |
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| المؤلفون: | PROOTH, Jeroen, PETROV, Michael, SHMAKOVA, Alevtina, GULKA, Michal, Cigler, Petr, D'HAEN, Jan, BOYEN, Hans-Gerd, NESLADEK, Milos |
| المساهمون: | PROOTH, Jeroen, PETROV, Michael, SHMAKOVA, Alevtina, GULKA, Michal, Cigler, Petr, D'HAEN, Jan, BOYEN, Hans-Gerd, NESLADEK, Milos |
| بيانات النشر: | WILEY |
| سنة النشر: | 2023 |
| المجموعة: | Document Server@UHasselt (Universiteit Hasselt) |
| مصطلحات موضوعية: | chemical vapor deposition, fluorescent nanodiamonds, nitrogen-vacancy (NV) spin relaxometry, quantum sensing |
| الوصف: | 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. ; J.P. and M.P. contributed equally to this work. The author would like to acknowledge the following projects: Diamond for chip-based quantum detection in bioelectrode multi-electrode recordings of human iPSCderived neurons and axonal networks (R-11434), i-BOF; EU Quantera II Project Maestro; EU Horizon 2020 project Amadeus grant agreements ID: 101080136 and No. 101046911 QuMicro. M.G. acknowledges the Eu project No. 101038045 (ChemiQS): This Project has received funding from the European Union’s Horizon 2020 research and innovation programme. The work was also supported by the Czech Science Foundation projects no. 23-04876S and No. 20-28980s, the European Regional Development Funds, OP RDE, Project: CARAT (No. CZ.02.1.01/0.0/0.0/16_026/0008382), and by the Czech Academy of Sciences - Strategy AV21 - Research ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | info:eu-repo/grantAgreement/EC/H2020/101080136; Advanced Quantum Technologies, 6 (12), (Art N° 2300004); http://hdl.handle.net/1942/41808Test; 12; 001086207300001 |
| DOI: | 10.1002/qute.202300004 |
| الإتاحة: | https://doi.org/10.1002/qute.202300004Test http://hdl.handle.net/1942/41808Test |
| رقم الانضمام: | edsbas.4C00D2E6 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/qute.202300004 |
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