Two-site diamond-like point defects as new single-photon emitters

Zoltán Bodrog, Adam Gali

Research output: Conference contribution


In this small review, we recall two promising candidates for biomarker nanosystems, in which a two-site defect embedded in a diamond-like lattice makes a single-photon source. The two candidates are the silicon-vacancy defect in diamond, and the carbon antisite-vacancy pair in 4H silicon carbide. These defects, which by symmetry resemble to the famous nitrogen-vacancy defect in diamond, bear an exact or nearly exact C3v symmetry, giving them selection rules which lead their important magnetooptical properties. The embedding diamond-like crystal lattice not only determines the symmetry of two-site defects, but also ensure a nontoxic vehicle on which they reside; a definitive requirement against biomarker nanosystems. In the silicon-vacancy case, the size of the biomarker system is also an important feature. Nanoparticles of the embedding crystal do not exceed the size of molecular clusters, in order to be able to aid measuring all types of relevant biomolecular processes.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
EditorsSandor Varro, Tamas Sandor Biro, Peter Levai, Gergely Gabor Barnafoldi, Peter Adam
PublisherEDP Sciences
ISBN (Electronic)9782759816576
Publication statusPublished - szept. 25 2014
EventWigner 111 - Colourful and Deep Scientific Symposium - Budapest, Hungary
Duration: nov. 11 2013nov. 13 2013

Publication series

NameEPJ Web of Conferences
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X


OtherWigner 111 - Colourful and Deep Scientific Symposium

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Bodrog, Z., & Gali, A. (2014). Two-site diamond-like point defects as new single-photon emitters. In S. Varro, T. S. Biro, P. Levai, G. G. Barnafoldi, & P. Adam (Eds.), EPJ Web of Conferences [05001] (EPJ Web of Conferences; Vol. 78). EDP Sciences.