Enhancing fluorescence of shallow nitrogen-vacancy centers in diamond by surface coating with titanium oxide layers
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-07-29 |
| Journal | Chinese Journal of Chemical Physics |
| Authors | Wenlong Zhang, Li Li, Wei Zhu, Guanzhong Wang |
| Institutions | University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale |
| Citations | 4 |
Abstract
Section titled āAbstractāWe present an enhancement of the fluorescence of shallow (<10 nm) nitrogen-vacancy (NVā) centers by using atomic layer deposition to deposit titanium oxide layers on the diamond surface. In this way, the shallow NVā center charge states were stabilized, leading to the increasing fluorescence intensity of about 2 times. This surface coating technique could produce a protective layer of controllable thickness without any damages to the solid-state quantum system surface, which might be an approach to the further passivation or packaging techniques for the solid-state quantum devices.