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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.
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Details
1 University of Torino, Physics Department, Turin, Italy (GRID:grid.7605.4) (ISNI:0000 0001 2336 6580); Sezione Di Torino, Istituto Nazionale Di Fisica Nucleare (INFN), Turin, Italy (GRID:grid.470222.1); Istituto Nazionale Di Ricerca Metrologica (INRiM), Turin, Italy (GRID:grid.425358.d) (ISNI:0000 0001 0691 504X)
2 Universität Leipzig, Applied Quantum Systems, Felix-Bloch Institute for Solid-State Physics, Leipzig, Germany (GRID:grid.9647.c) (ISNI:0000 0004 7669 9786)
3 University of Torino, Physics Department, Turin, Italy (GRID:grid.7605.4) (ISNI:0000 0001 2336 6580); Sezione Di Torino, Istituto Nazionale Di Fisica Nucleare (INFN), Turin, Italy (GRID:grid.470222.1)
4 University of Torino, Physics Department, Turin, Italy (GRID:grid.7605.4) (ISNI:0000 0001 2336 6580)
5 Istituto Nazionale Di Ricerca Metrologica (INRiM), Turin, Italy (GRID:grid.425358.d) (ISNI:0000 0001 0691 504X)
6 Ruđer Bošković Institute, Laboratory for Ion Beam Interactions, Zagreb, Croatia (GRID:grid.4905.8) (ISNI:0000 0004 0635 7705)
7 Australian Nuclear Science and Technology Organisation, Centre for Accelerator Science, Lucas Heights, Australia (GRID:grid.1089.0) (ISNI:0000 0004 0432 8812)
8 Istituto Nazionale Di Ricerca Metrologica (INRiM), Turin, Italy (GRID:grid.425358.d) (ISNI:0000 0001 0691 504X); Sezione Di Torino, Istituto Nazionale Di Fisica Nucleare (INFN), Turin, Italy (GRID:grid.470222.1)