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Synthesis of nitrogen-doped diamond films using vibrational excitation of ammonia molecules in laser-assisted combustion flames
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10.2351/1.3685299
/content/lia/journal/jla/24/2/10.2351/1.3685299
http://aip.metastore.ingenta.com/content/lia/journal/jla/24/2/10.2351/1.3685299
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Illustration of the experimental setup for the CO2 laser-assisted combustion flame method for deposition of nitrogen-doped diamond in open air.

Image of FIG. 2.
FIG. 2.

Absorption of the CO2 laser power by ammonia gas as a function of the laser wavelength.

Image of FIG. 3.
FIG. 3.

SEM images of the diamond films deposited using ammonia-free flames (a), and ammonia-added flames without laser (b) and with 500 W CO2 laser excitations at 10.591, 10.719, 10.35, and 9.219 μm (c)-(f).

Image of FIG. 4.
FIG. 4.

Raman spectra of the diamond films deposited using ammonia-free flames (a), and using ammonia-added flames with no laser excitation (b) and with laser excitations at 10.591, 10.719, 10.35, and 9.219 μm (c)-(f).

Image of FIG. 5.
FIG. 5.

Dependence of film quality (given by Q i ) on the absorption coefficient (α) of the laser excitation wavelength.

Image of FIG. 6.
FIG. 6.

Optical emission spectra of ammonia-free oxyacetylene flames (a), and ammonia-added flames with no laser excitation (b) and with 500 W CO2 laser excitations at 10.591 and 9.219 μm (c) and (d).

Image of FIG. 7.
FIG. 7.

Mole fractions of the species in the flames under different laser excitations.

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/content/lia/journal/jla/24/2/10.2351/1.3685299
2012-02-28
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Synthesis of nitrogen-doped diamond films using vibrational excitation of ammonia molecules in laser-assisted combustion flames
http://aip.metastore.ingenta.com/content/lia/journal/jla/24/2/10.2351/1.3685299
10.2351/1.3685299
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