Size-dependent luminescence of color centers in composite nanodiamonds

Vladimir A. Shershulin*, Vadim S. Sedov, Anna Ermakova, Uwe Jantzen, Lachlan Rogers, Anastasia A. Huhlina, Ekaterina G. Teverovskaya, Victor G. Ralchenko, Fedor Jelezko, Igor I. Vlasov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Luminescence properties of nitrogen-vacancy (NV) and silicon-vacancy (SiV) centers were investigated for the series of O-terminated composite nanodiamonds consisting of a high-pressure–high-temperature (HPHT) diamond core and a chemical-vapor-deposition (CVD) diamond outer layer of different thickness. It was found that emission of NV and SiV centers cease to “feel” the diamond surface at a distance of 12 and 4 nm, respectively, from it. This finding determines minimum sizes of O-terminated nanodiamonds in which stable single photon emitters could be formed based on NV and SiV centers. Suggested composite diamond nanostructure are optimal for design of two-color luminescent markers. The studied diamond nanoparticles present composite structure of “core-outer layer” type. The core is 20 nm HPHT diamond containing NV centers, whereas outer diamond layer containing SiV centers is formed by CVD synthesis.

Original languageEnglish
Pages (from-to)2600-2605
Number of pages6
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume212
Issue number11
DOIs
Publication statusPublished - Nov 2015
Externally publishedYes

Keywords

  • chemical vapor deposition
  • color centers
  • diamond
  • nanoparticles
  • photoluminescence

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