Influence of degree of air oxidation and functionality on ensemble emission from nitrogen vacancy centers in nano-diamonds
Oxygen functionalities in Nano-diamonds (NDs) are accepted as emission and photo-
stability enhancer of nitrogen vacancy (NV) centers. In this direction, we have investigated
the effect of functional groups and oxygen content on emission and stability of NV centers at
ensemble level. Optimized air oxidation conditions (600° C, 2 h) and hydrogen plasma
treatment (500° C, 20 min) are used to vary functionality and oxygen content. The emission
from NV centers in plasma treated NDs (–OH group) is~ 5 times higher as compared to …
stability enhancer of nitrogen vacancy (NV) centers. In this direction, we have investigated
the effect of functional groups and oxygen content on emission and stability of NV centers at
ensemble level. Optimized air oxidation conditions (600° C, 2 h) and hydrogen plasma
treatment (500° C, 20 min) are used to vary functionality and oxygen content. The emission
from NV centers in plasma treated NDs (–OH group) is~ 5 times higher as compared to …
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