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Hydrogen termination of CVD diamond films by high-temperature annealing at atmospheric pressure
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10.1063/1.4810866
/content/aip/journal/jcp/138/23/10.1063/1.4810866
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/23/10.1063/1.4810866
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Water contact angle on (a) UV/ozone-treated and (b) H-treated undoped CVD diamond film. (c) SEM image of the undoped CVD diamond film showing two domains with a difference in contrast due to a difference in secondary electron emission. The dashed line (guide to the eye) indicates the boundary between the UV/ozone-treated and H-treated portion on the same film.

Image of FIG. 2.
FIG. 2.

XPS C 1s region spectra of an undoped CVD diamond film treated with (a) UV/ozone, (b) H plasma and (c) H-treatment at ∼850 °C and atmospheric pressure. The dashed line represents the acquired spectrum; the convoluted peaks (solid lines, labeled as I, II, III, IV, and V) were obtained via peak fitting. The total fit is given by circles. See main text for further details on the peak assignment.

Image of FIG. 3.
FIG. 3.

(a) Photoconductance transient for H plasma-treated (red curve) and H-treated (blue curve) undoped CVD diamond film measured using the TRMC technique. The insert shows the photoconductance transient of UV/ozone-treated (green curve) film. (b) Normalized photoconductance transient showing charge carrier lifetime data. The arrow indicates the half-lifetime (τ).

Image of FIG. 4.
FIG. 4.

Cyclic voltammograms of UV/ozone-treated (dashed curve), H plasma-treated (dotted-dashed curve), and H-treated (solid curve) doped CVD diamond film at a scan rate of 20 mV/s. In all cases Fe(CN) was used as a redox couple.

Image of FIG. 5.
FIG. 5.

(a) Cyclic voltammogram of electrografting of 2.5 mM dodecyldiazonium tetrafluoroborate in acetonitrile on H-treated (solid line) and UV/ozone-treated (dashed line) doped CVD diamond film at a scan rate of 50 mV/s. Cyclic voltammograms of (b) H-treated and (c) UV/ozone-treated doped CVD diamond film before (solid curve) and after (dotted curve) diazonium functionalization at a scan rate of 20 mV/s. In the case of (b) and (c) Fe(CN) was used as a redox couple.

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/content/aip/journal/jcp/138/23/10.1063/1.4810866
2013-06-21
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Hydrogen termination of CVD diamond films by high-temperature annealing at atmospheric pressure
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/23/10.1063/1.4810866
10.1063/1.4810866
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