Diamond surface engineering for molecular sensing with nitrogen-vacancy
centers
- URL: http://arxiv.org/abs/2207.07509v1
- Date: Fri, 15 Jul 2022 14:46:24 GMT
- Title: Diamond surface engineering for molecular sensing with nitrogen-vacancy
centers
- Authors: Erika Janitz, Konstantin Herb, Laura A. V\"olker, William S. Huxter,
Christian L. Degen and John M. Abendroth
- Abstract summary: Quantum sensing using optically addressable atomic-scale defects, such as the nitrogen--vacancy center in diamond, provides new opportunities for sensitive and highly localized characterization of chemical functionality.
This Review provides a survey of the rapidly converging fields of diamond surface science and NV-center physics, highlighting their combined potential for quantum sensing of molecules.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum sensing using optically addressable atomic-scale defects, such as the
nitrogen--vacancy (NV) center in diamond, provides new opportunities for
sensitive and highly localized characterization of chemical functionality.
Notably, near-surface defects facilitate detection of the minute magnetic
fields generated by nuclear or electron spins outside of the diamond crystal,
such as those in chemisorbed and physisorbed molecules. However, the promise of
NV centers is hindered by a severe degradation of critical sensor properties,
namely charge stability and spin coherence, near surfaces (< ca. 10 nm deep).
Moreover, applications in the chemical sciences require methods for covalent
bonding of target molecules to diamond with robust control over density,
orientation, and binding configuration. This forward-looking Review provides a
survey of the rapidly converging fields of diamond surface science and
NV-center physics, highlighting their combined potential for quantum sensing of
molecules. We outline the diamond surface properties that are advantageous for
NV-sensing applications, and discuss strategies to mitigate deleterious effects
while simultaneously providing avenues for chemical attachment. Finally, we
present an outlook on emerging applications in which the unprecedented
sensitivity and spatial resolution of NV-based sensing could provide unique
insight into chemically functionalized surfaces at the single-molecule level.
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