Increased nitrogen-vacancy centre creation yield in diamond through electron beam irradiation at high temperature

Capelli, M, Heffernan, A, Ohshima, T, Abe, H, Jeske, J, Hope, A, Greentree, A, Reineck, P and Gibson, B 2019, 'Increased nitrogen-vacancy centre creation yield in diamond through electron beam irradiation at high temperature', Carbon, vol. 143, pp. 714-719.


Document type: Journal Article
Collection: Journal Articles

Title Increased nitrogen-vacancy centre creation yield in diamond through electron beam irradiation at high temperature
Author(s) Capelli, M
Heffernan, A
Ohshima, T
Abe, H
Jeske, J
Hope, A
Greentree, A
Reineck, P
Gibson, B
Year 2019
Journal name Carbon
Volume number 143
Start page 714
End page 719
Total pages 6
Publisher Pergamon Press
Abstract The nitrogen-vacancy (NV) centre is a fluorescent defect in diamond that is of critical importance for applications from ensemble sensing to biolabelling. Hence, understanding and optimising the creation of NV centres in diamond is vital for technological progress in these areas. We demonstrate that simultaneous electron irradiation and annealing of a high-pressure high-temperature diamond sample increases the NV centre creation efficiency from substitutional nitrogen defects by up to 117% with respect to a sample where the processes are carried out consecutively, but using the same process parameters. This increase in fluorescence is supported by visible and infrared absorption spectroscopy experiments. Our results pave the way for a more efficient creation of NV centres in diamond as well as higher overall NV densities in the future.
Subject Photonics, Optoelectronics and Optical Communications
Synthesis of Materials
Optical Properties of Materials
DOI - identifier 10.1016/j.carbon.2018.11.051
Copyright notice © 2018 Elsevier Ltd. All rights reserved.
ISSN 0008-6223
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