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Luminescence lifetimes of neutral nitrogen-vacancy centres in synthetic diamond containing nitrogen.
MedLine Citation:
PMID:  23032562     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The decay time of luminescence from neutral nitrogen-vacancy (NV (0)) centres in synthetic diamond is reported. The intrinsic luminescence lifetime of NV (0) is measured as τ(r) = 19 ± 2 ns. Neutral substitutional nitrogen atoms [Formula: see text] are shown to quench luminescence from NV(0) by dipole-dipole resonant energy transfer at a rate such that the transfer time would equal τ(r) if one [Formula: see text] atom was ∼3 nm from the NV(0). In chemical-vapour-deposited diamonds grown with a small nitrogen content, that are brown as a result of vacancy-cluster defects, the decay time of NV(0) equals τ(r) in the as-grown material. However, after annealing at ≥1700 °C to remove the brown colour, luminescence from the NV(0) centres is severely quenched. This effect is suggested to be a result of the destruction of NV(0) centres and the creation of new NV(0) centres localized in vacancy-rich regions of the crystals.
Authors:
G Liaugaudas; G Davies; K Suhling; R U A Khan; D J F Evans
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-03
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  24     ISSN:  1361-648X     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  -    
Other Details:
Languages:  ENG     Pagination:  435503     Citation Subset:  -    
Affiliation:
Institute of Applied Research, Vilnius University, Vilnius 10222, Lithuania.
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