Effects of thermal treatment on optically active vacancy defects in CVD diamonds

Effects of thermal treatment on optically active vacancy defects in CVD diamonds

In this paper we report on the preliminary results obtained in as-grown and annealed CVD diamond with positron annihilation spectroscopy. We observe clustering of as-grown vacancy defects in annealing above 1400 ∘ C . The optical activity of the vacancy defects is studied by shining monochromatic li...

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Veröffentlicht in:Physica. B, Condensed matter Condensed matter, 2007-12, Vol.401, p.613-616
Hauptverfasser: Mäki, J.-M., Tuomisto, F., Kelly, C., Fisher, D., Martineau, P.
Format: Artikel
Sprache:eng
Schlagworte:
Diamond
Experiment
Group IV and compounds
Positron annihilation
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Zusammenfassung:In this paper we report on the preliminary results obtained in as-grown and annealed CVD diamond with positron annihilation spectroscopy. We observe clustering of as-grown vacancy defects in annealing above 1400 ∘ C . The optical activity of the vacancy defects is studied by shining monochromatic light in the visible range during the positron measurements.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2007.09.034