Blue delayed luminescence emission in neutral nitrogen vacancy containing chemical vapor deposition synthetic diamond

James, Ff ion L. L., Wassell, Amber M., McGuinness, Colin D., Lanigan, Peter M. P., Fisher, David, Klemencic, Georgina M. ORCID: https://orcid.org/0000-0002-2125-9754, Hodges, Chris ORCID: https://orcid.org/0000-0002-4993-4547 and Lynch, Stephen A. ORCID: https://orcid.org/0000-0001-9818-2284 2024. Blue delayed luminescence emission in neutral nitrogen vacancy containing chemical vapor deposition synthetic diamond. physica status solidi (a) – applications and materials science , 2300651. 10.1002/pssa.202300651

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Abstract

Herein, the authors investigate the temperature‐dependent properties of delayed luminescence in an as‐grown nitrogen‐containing chemical vapor deposition synthetic diamond gemstone when excited above its bandgap. At room temperature, this gemstone exhibits delayed luminescence from nitrogen‐vacancy centers at 575 nm. However, at 77 K, the first recorded instance of a long‐lived delayed blue luminescence centered at ≈465 nm, accompanied by spectral peaks at 419, 455, and 499 nm is reported. By analyzing spectral and temporal data at different temperatures, it can be speculated on potential photophysical transitions. This discovery documents the initial observation of this delayed luminescence emission, contributing to the collective understanding of synthetic diamonds.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Physics and Astronomy
Additional Information:	License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/
Publisher:	Wiley
ISSN:	1862-6300
Funders:	EPSRC
Date of First Compliant Deposit:	14 March 2024
Last Modified:	16 Apr 2024 10:15
URI:	https://orca.cardiff.ac.uk/id/eprint/167250

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