Počet záznamů: 1
Long Spin Relaxation Times in CVD-Grown Nanodiamonds
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SYSNO ASEP 0576914 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Long Spin Relaxation Times in CVD-Grown Nanodiamonds Tvůrce(i) Prooth, J. (BE)
Petrov, M. (BE)
Shmakova, A. (BE)
Gulka, Michal (UOCHB-X) ORCID
Cígler, Petr (UOCHB-X) RID, ORCID
D´Haen, J. (BE)
Boyen, H. G. (BE)
Nesladek, M. (BE)Číslo článku 2300004 Zdroj.dok. Advanced Quantum Technologies. - New York : Wiley
Roč. 6, č. 12 (2023)Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova chemical vapor deposition ; fluorescent nanodiamonds ; nitrogen-vacancy (NV) spin relaxometry ; quantum sensing Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP EF16_026/0008382 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA23-04876S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 001086207300001 EID SCOPUS 85173801975 DOI 10.1002/qute.202300004 Anotace 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 (Formula presented.) 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. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434 Rok sběru 2024 Elektronická adresa https://doi.org/10.1002/qute.202300004
Počet záznamů: 1