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arXiv · 1304.1407

Effect of fluorinated diamond surface on charge state of nitrogen-vacancy centers

Shanying Cui·Evelyn L. Hu
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Abstract

We investigated the effect of fluorine-terminated diamond surface on the charged state of shallow nitrogen vacancy defect centers (NVs). Fluorination is achieved with CF4 plasma and the surface chemistry is confirmed with x-ray photoemission spectroscopy. Photoluminescence of these ensemble NVs reveal that fluorine-treated surfaces lead to a higher negatively charged nitrogen vacancy (NV-) population than oxygen-terminated surfaces. Using surface chemistry to control NV charges, in particular increasing the density of NV- centers, is an important step towards improving the optical and spin properties of NVs for quantum information processing and magnetic sensing.

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Shanying Cui, Evelyn L. Hu. 2013-04-04. Effect of fluorinated diamond surface on charge state of nitrogen-vacancy centers. https://arxiv.org/abs/1304.1407

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