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Emission spectra analysis of arc plasma for synthesis of carbon nanostructures in various magnetic conditions
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10.1063/1.4740459
/content/aip/journal/jap/112/2/10.1063/1.4740459
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/2/10.1063/1.4740459

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic diagram of the synthesis system of carbon nanostructures and spectrometer setup. (b) Snapshots of arc discharge in reaction chamber without and with magnetic field marked with the four spots for arc emission spectra analysis.

Image of FIG. 2.
FIG. 2.

(a) TEM image of SWCNT synthesized in magnetically enhanced arc. (b) TEM image and EDX (inset) of graphene synthesized in magnetically enhanced arc. (c) Raman spectra of as-synthesized carbon nanostructures without and with magnetic field, respectively.

Image of FIG. 3.
FIG. 3.

The typical arc emission spectra in different arc spots under various magnetic conditions.

Image of FIG. 4.
FIG. 4.

Data of Boltzmann plots calculated from the emission intensities of the C2 Swan bands for upper vibrational levels of  = 0-4.

Image of FIG. 5.
FIG. 5.

The temperature and electron density distribution contours inside the discharge chamber. The subplot shows simulated temperature (black curve) along the radial direction from arc center and measured temperature (blue point and error bar) at spots of N1 and N2 without magnetic field.

Image of FIG. 6.
FIG. 6.

The intensity ratio of carbon diatoms (516.5 nm) and nickel atom (352.5 nm) as a function of synthesis time.

Tables

Generic image for table
Table I.

The list of identified emission lines from arc plasma and their possible transitions.

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/content/aip/journal/jap/112/2/10.1063/1.4740459
2012-07-31
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Emission spectra analysis of arc plasma for synthesis of carbon nanostructures in various magnetic conditions
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/2/10.1063/1.4740459
10.1063/1.4740459
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