Scientific Reports (Dec 2020)

Fluorine-based color centers in diamond

  • S. Ditalia Tchernij,
  • T. Lühmann,
  • E. Corte,
  • F. Sardi,
  • F. Picollo,
  • P. Traina,
  • M. Brajković,
  • A. Crnjac,
  • S. Pezzagna,
  • Ž. Pastuović,
  • I. P. Degiovanni,
  • E. Moreva,
  • P. Aprà,
  • P. Olivero,
  • Z. Siketić,
  • J. Meijer,
  • M. Genovese,
  • J. Forneris

DOI
https://doi.org/10.1038/s41598-020-78436-6
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 7

Abstract

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Abstract We report on the creation and characterization of the luminescence properties of high-purity diamond substrates upon F ion implantation and subsequent thermal annealing. Their room-temperature photoluminescence emission consists of a weak emission line at 558 nm and of intense bands in the 600–750 nm spectral range. Characterization at liquid He temperature reveals the presence of a structured set of lines in the 600–670 nm spectral range. We discuss the dependence of the emission properties of F-related optical centers on different experimental parameters such as the operating temperature and the excitation wavelength. The correlation of the emission intensity with F implantation fluence, and the exclusive observation of the afore-mentioned spectral features in F-implanted and annealed samples provides a strong indication that the observed emission features are related to a stable F-containing defective complex in the diamond lattice.