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  4. Increased nitrogen-vacancy centre creation yield in diamond through electron beam irradiation at high temperature
 
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2019
Journal Article
Titel

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

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.
Author(s)
Abe, H.
RMIT University, Melbourne
Capelli, M.
RMIT University, Melbourne
Gibson, B.C.
National Institutes for Quantum and Radiological Science and Technology, Japan
Greentree, A.D.
National Institutes for Quantum and Radiological Science and Technology, Japan
Heffernan, A.H.
Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Hope, A.
RMIT University, Melbourne
Jeske, Jan
RMIT University, Melbourne
Ohshima, T.
RMIT University, Melbourne
Reineck, P.
RMIT University, Melbourne
Zeitschrift
Carbon
Thumbnail Image
DOI
10.1016/j.carbon.2018.11.051
Language
English
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Fraunhofer-Institut für Angewandte Festkörperphysik IAF
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