Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3684612
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- Australian Research Council [DP1096288, LP100100524, DP0880466]
- Australian Research Council [DP1096288, LP100100524] Funding Source: Australian Research Council
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We show reduction in the emission from nitrogen-vacancy (NV) centers in single crystal diamond due to exposure to hydrogen plasmas ranging from 700 degrees C to 1000 degrees C. Significant fluorescence reduction was observed beneath the exposed surface to 80 mu m depth after similar to 10 min and did not recover after post-annealing in vacuum for 7 h at 1100 degrees C. We attribute the fluorescence reduction to the formation of nitrogen-vacancy-hydrogen centers by the plasma-induced diffusion of hydrogen. These results have important implications for the formation of NV centers for quantum applications, whilst also providing experimental evidence of long range hydrogen diffusion through intrinsic high-purity diamond. (C) 2012 American Institute of Physics. [doi:10.1063/1.3684612]
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