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Generation of nitrogen-vacancy color center in nanodiamonds by high temperature annealing
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10.1063/1.4800219
/content/aip/journal/apl/102/13/10.1063/1.4800219
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/13/10.1063/1.4800219
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Figures

Image of FIG. 1.
FIG. 1.

Room temperature PL spectra of nanodiamonds treated under different conditions. (a) PL spectrum of as-received nanodiamonds without any treatment (black) and PL spectrum of nanodiamonds purified by oxidation in air (red). (b) PL spectra of nanodiamonds annealed at different temperatures compared with unannealed sample. All the samples were purified by oxidation in air after annealing process.

Image of FIG. 2.
FIG. 2.

Low temperature PL spectra of nanodiamonds annealed at 800 °C and subsequently oxidation purified (red), no annealed but oxidation purified (black). The PL spectra were obtained at 9 K.

Image of FIG. 3.
FIG. 3.

20 × 20 μm2 confocal microscope images of nanodiamonds dispersed on quartz plate. (a) Oxidation purified nanodiamonds (bright spots indicate nanodiamonds hosting NV center). (b) Nanodiamonds after annealing and oxidation purified, nanodiamonds concentration of the dispersion and spin-coating condition are same as that used in (a). (c) Second order correlation function g2(τ) of the emission of the bright spot marked by white cycle in Fig. 3(b) . (d) Zero-field CW-ODMR spectrum of a single NV center, solid curve is the Lorentzian fitting to the experimental spectrum. (e) Distribution of D values deduced from the experimental data of 20 single NV centers. (f) Distribution of E values from the same set of 20 single NV centers.

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/content/aip/journal/apl/102/13/10.1063/1.4800219
2013-04-05
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Generation of nitrogen-vacancy color center in nanodiamonds by high temperature annealing
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/13/10.1063/1.4800219
10.1063/1.4800219
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