Download file (1.48 MB)
Download as zip (1.29 MB)

Collection

Citation

Description:

Negatively charged nitrogen-vacancy (NV-) centers in diamond produce a characteristic optical zero-phonon line (ZPL) at 637 nm. This emission line can be observed under optical excitation (i.e. photoluminescence), but is rarely observed under electron excitation (i.e. cathodoluminescence). This study reports that low-temperature (80 K) and low energy (5 keV) cathodoluminescence spectroscopy is able to detect emission peak or spectral dip at the ZPL of NV- centers. The spectral dip was observed in the diamond samples with high concentration of NV- centers produced by high-energy (2 MeV) e-beam (EB) irradiation. The effects of EB irradiation fluence, NV- centers concentration and substitutional nitrogen concentration on the formation of spectral dip were
discussed, and a model based on the NV- absorption of NV0 emission sideband is proposed.

Rights:

• In Copyright
  

Keyword: NV- centers , Diamond, Cathodoluminescence, Spectral dip

Date published: 2024-08-13

Publisher: Elsevier BV

Journal:

• DIAMOND AND RELATED MATERIALS (ISSN: 09259635) vol. 148 1111476

Funding:

• Government of Japan Ministry of Education Culture Sports Science and Technology
• Japan Society for the Promotion of Science
• Ministry of Internal Affairs and Communications
• Japan Science and Technology Agency

Manuscript type: Author's original (Submitted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4726

First published URL: https://doi.org/10.1016/j.diamond.2024.111476

Related item:

Other identifier(s):

Contact agent:

Updated at: 2024-09-05 16:30:23 +0900

Published on MDR: 2024-09-05 16:30:24 +0900