Investigation of NV(−) centers and crystallite interfaces in synthetic single-crystal and polycrystalline nanodiamonds by optical fluorescence and microwave spectroscopy
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2018-02-01 |
| Journal | Journal of Optical Technology |
| Authors | V. Yu. Osipov, N. M. Romanov, Kirill Bogdanov, François Treussart, Christian Jentgens |
| Institutions | École Normale Supérieure Paris-Saclay, Université Paris-Saclay |
| Citations | 6 |
Abstract
Section titled “Abstract”Three types of diamond nanoparticles with sizes from 5 to 1000 nm have been investigated, whose crystal lattices include nitrogen-vacancy (NV) centers: detonation nanodiamonds (DNDs), dynamic-synthesis polycrystalline diamonds, and static-synthesis single-crystal diamonds. The electron paramagnetic resonance spectra have been investigated, along with the luminescence and IR absorption spectra of these materials. The DND concentration of NV(−) centers is 2.7 ppm and is highest for particles in the size range up to 7 nm. The concentration of NV(−) centers in polycrystalline diamonds is an order of magnitude less and depends on the average size of the polycrystalline particles, reaching a maximum at 180 nm in the average size range. The luminescence is brightest in 100-nm particles of synthetic Ib diamonds subjected to high-energy-electron irradiation and annealing. The latter with an NV(−) concentration of around 4 ppm can be used as fluorescent markers at the nanolevel.