Surface-induced charge state conversion of nitrogen-vacancy defects in nanodiamonds

By L. Rondin, Géraldine Dantelle, A. Slablab, F. Grosshans, F. Treussart, P. Bergonzo, S. Perruchas, T. Gacoin, M. Chaigneau, Huan‐Cheng Chang and 2 more. 2010

244 citations recorded by the source corpus.

We present a study of the charge state conversion of single nitrogen-vacancy (NV) defects hosted in nanodiamonds (NDs). We first show that the proportion of negatively charged ${\text{NV}}^{\ensuremath{-}}$ defects, with respect to its neutral counterpart ${\text{NV}}^{0}$, decreases with the size of the ND. We then propose a simple model based on a layer of electron traps located at the ND surface which is in good agreement with the recorded statistics. By using thermal oxidation to remove the shell of amorphous carbon around the NDs, we demonstrate a significant increase in the proportion of ${\text{NV}}^{\ensuremath{-}}$ defects in 10 nm NDs. These results are invaluable for further understanding, control, and use of the unique properties of negatively charged NV defects in diamond.

Subfields: Geophysics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/218c72ce1932173c850f5dc3deda41a0cb229cf3

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In Geophysics

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In Materials Chemistry

Citations in the corpus

Photo-induced ionization dynamics of the nitrogen vacancy defect in diamond investigated by single-shot charge state detection (2012, background): “through shifts of the Fermi level (see [33, 34]), an effect is expected.”
Magnetometry with nitrogen-vacancy defects in diamond (2013, background): “Understanding and controlling the physical processes involved in chargestate conversion of NV defects is currently the subject of many research efforts which are out of the scope of this paper [28–31].”