Identifying Carbon as the Source of Visible Single Photon Emission from Hexagonal Boron Nitride
| Autor: | Hu Long, Tin S. Cheng, Noah Mendelson, Carlo Bradac, Jeffrey R. Reimers, Christopher J. Mellor, Hark Hoe Tan, Alex Zettl, Peter H. Beton, Dipankar Chugh, Michael J. Ford, Andreas Gottscholl, Milos Toth, Igor Aharonovich, Sergei V. Novikov, Vladimir Dyakonov, Chennupati Jagadish |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Photon
Materials science FOS: Physical sciences chemistry.chemical_element Applied Physics (physics.app-ph) 02 engineering and technology 010402 general chemistry 01 natural sciences Molecular physics Impurity General Materials Science Quantum optics Range (particle radiation) Condensed Matter - Materials Science business.industry Mechanical Engineering Materials Science (cond-mat.mtrl-sci) General Chemistry Physics - Applied Physics 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Ion implantation chemistry Mechanics of Materials Content (measure theory) Photonics 0210 nano-technology business Carbon Optics (physics.optics) Physics - Optics |
| Popis: | Single-photon emitters (SPEs) in hexagonal boron nitride (hBN) have garnered increasing attention over the last few years due to their superior optical properties. However, despite the vast range of experimental results and theoretical calculations, the defect structure responsible for the observed emission has remained elusive. Here, by controlling the incorporation of impurities into hBN via various bottom-up synthesis methods and directly through ion implantation, we provide direct evidence that the visible SPEs are carbon related. Room-temperature optically detected magnetic resonance is demonstrated on ensembles of these defects. We perform ion-implantation experiments and confirm that only carbon implantation creates SPEs in the visible spectral range. Computational analysis of the simplest 12 carbon-containing defect species suggest the negatively charged $${\rm{V}}_{\rm{B}}{\rm{C}}_{\rm{N}}^ -$$ defect as a viable candidate and predict that out-of-plane deformations make the defect environmentally sensitive. Our results resolve a long-standing debate about the origin of single emitters at the visible range in hBN and will be key to the deterministic engineering of these defects for quantum photonic devices. Comparison of hexagonal boron nitride samples grown with different techniques and with varying carbon-doping content provides evidence that the defects emitting single photons in the visible range are carbon related. |
| Databáze: | OpenAIRE |
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