Journal
SCIENTIFIC REPORTS
Volume 10, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41598-020-78436-6
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Funding
- Coordinated Research Project of the International Atomic Energy Agency (IAEA) [F11020]
- Project Piemonte Quantum Enabling Technologies - Piemonte Region within the Infra-P scheme (POR-FESR 2014-2020 program of the European Union)
- Departments of Excellence - Italian Ministry of Education, University and Research (MIUR) [L. 232/2016]
- University of Torino - Compagnia di San Paolo
- EMPIR programme [17FUN06]
- ASTERIQS program of the European Commission
- EU RADIATE Project [19001744]
- FET OPEN Pathos
- European Union
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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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