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Energy transfer from a single nitrogen-vacancy center in nanodiamond to a graphene monolayer
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10.1063/1.4769367
/content/aip/journal/apl/101/23/10.1063/1.4769367
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/23/10.1063/1.4769367
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Figures

Image of FIG. 1.
FIG. 1.

Diagram of the self-built scanning confocal optical microscope. The sample illustrates a nanodiamond with an NV center on graphene substrate.

Image of FIG. 2.
FIG. 2.

Confocal scanning image and florescence spectra of NV centers on different substrates. (a) Confocal scanning image of nanodiamonds with embedded NV centers on quartz substrate. (b) Second-order correlation function of the emission from the bright spot marked with a green circle in (a), the observed behavior indicates each corresponding nanodiamonds contains only one single photon emitter. (c),(d) Fluorescence spectra of a single NV center on graphene and quartz substrate, respectively. Curve A (red line) and curve B (green line) are the smoothed data of the corresponding original data (black lines), which were measured when the laser confocal spot was on a single NV center and on the substrate, respectively. The Raman peaks D, G, 2D of graphene, and ZPL of the NV center at 637 nm are observed from the spectrum (curve A) in (c), while only ZPL of the NV center is shown in the spectrum (curve A) in (d). The spectra (curves B) in (c) and (d) were measured with the laser spot shifted out from the NV center. The Raman peaks D, G, 2D of graphene were detected on graphene substrate, while none of them was observed on quartz substrate.

Image of FIG. 3.
FIG. 3.

Fluorescence lifetime distribution of single NV centers on graphene (white bar) and on quartz (black bar). It shows that the most probable lifetime of the single NV centers on graphene is shorter than that on quartz.

Image of FIG. 4.
FIG. 4.

Fluorescence intensity distribution of single NV centers on graphene (white bar) and on quartz (black bar). The most probable intensity on graphene is weaker than that on quartz.

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/content/aip/journal/apl/101/23/10.1063/1.4769367
2012-12-06
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Energy transfer from a single nitrogen-vacancy center in nanodiamond to a graphene monolayer
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/23/10.1063/1.4769367
10.1063/1.4769367
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