Proper surface termination for luminescent near-surface NV centers in diamond

Moloud Kaviani, Peter Deák, Bálint Aradi, Thomas Frauenheim, Jyh Pin Chou, Adam Gali

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

By accurate quantum mechanical simulations, we show that typical diamond surfaces possess image states with sub-bandgap energies, and compromise the photostability of NV centers placed within a few nm of the surface. This occurs due to the mixture of the NV-related gap states and the surface image states, which is a novel and distinct process from the well-established band bending effect. We also find that certain types of coverages on the diamond surface may lead to blinking or bleaching due to the presence of acceptor surface states. We identify a combination of surface terminators that is perfect for NV-center based nanoscale sensing.

Original languageEnglish
Pages (from-to)4772-4777
Number of pages6
JournalNano Letters
Volume14
Issue number8
DOIs
Publication statusPublished - Aug 13 2014

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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    Kaviani, M., Deák, P., Aradi, B., Frauenheim, T., Chou, J. P., & Gali, A. (2014). Proper surface termination for luminescent near-surface NV centers in diamond. Nano Letters, 14(8), 4772-4777. https://doi.org/10.1021/nl501927y