Counting vacancies and nitrogen-vacancy centers in detonation nanodiamond

Lan-Yun Chang, Amanda S. Barnard, Christian Dwyer, Chris B. Boothroyd, Rosalie K. Hocking, Eiji Osawa, Rebecca J. Nicholls

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Detonation nanodiamond particles (DND) contain highly-stable nitrogen-vacancy (N-V) centers, making it important for quantum-optical and biotechnology applications. However, due to the small particle size, the N-V concentrations are believed to be intrinsically very low, spawning efforts to understand the formation of N-V centers and vacancies, and increase their concentration. Here we show that vacancies in DND can be detected and quantified using simulation-aided electron energy loss spectroscopy. Despite the small particle size, we find that vacancies exist at concentrations of about 1 at%. Based on this experimental finding, we use ab initio calculations to predict that about one fifth of vacancies in DND form N-V centers. The ability to directly detect and quantify vacancies in DND, and predict the corresponding N-V formation probability, has a significant impact to those emerging technologies where higher concentrations and better dispersion of N-V centres are critically required.

Original languageEnglish (US)
Pages (from-to)10548-10552
Number of pages5
JournalNanoscale
Volume8
Issue number20
DOIs
StatePublished - May 28 2016

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Nanodiamonds
Detonation
Vacancies
Nitrogen
Particle size
Electron energy loss spectroscopy
Biotechnology

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Chang, L-Y., Barnard, A. S., Dwyer, C., Boothroyd, C. B., Hocking, R. K., Osawa, E., & Nicholls, R. J. (2016). Counting vacancies and nitrogen-vacancy centers in detonation nanodiamond. Nanoscale, 8(20), 10548-10552. https://doi.org/10.1039/c6nr01888b

Counting vacancies and nitrogen-vacancy centers in detonation nanodiamond. / Chang, Lan-Yun; Barnard, Amanda S.; Dwyer, Christian; Boothroyd, Chris B.; Hocking, Rosalie K.; Osawa, Eiji; Nicholls, Rebecca J.

In: Nanoscale, Vol. 8, No. 20, 28.05.2016, p. 10548-10552.

Research output: Contribution to journalArticle

Chang, L-Y, Barnard, AS, Dwyer, C, Boothroyd, CB, Hocking, RK, Osawa, E & Nicholls, RJ 2016, 'Counting vacancies and nitrogen-vacancy centers in detonation nanodiamond', Nanoscale, vol. 8, no. 20, pp. 10548-10552. https://doi.org/10.1039/c6nr01888b
Chang L-Y, Barnard AS, Dwyer C, Boothroyd CB, Hocking RK, Osawa E et al. Counting vacancies and nitrogen-vacancy centers in detonation nanodiamond. Nanoscale. 2016 May 28;8(20):10548-10552. https://doi.org/10.1039/c6nr01888b
Chang, Lan-Yun ; Barnard, Amanda S. ; Dwyer, Christian ; Boothroyd, Chris B. ; Hocking, Rosalie K. ; Osawa, Eiji ; Nicholls, Rebecca J. / Counting vacancies and nitrogen-vacancy centers in detonation nanodiamond. In: Nanoscale. 2016 ; Vol. 8, No. 20. pp. 10548-10552.
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