1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Plasma modification of nanoparticle arrays: A route to catalytic coatings of surfaces
Rent:
Rent this article for
USD
10.1116/1.2936222
/content/avs/journal/jvsta/26/4/10.1116/1.2936222
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/26/4/10.1116/1.2936222
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

SEM images of a well-ordered particle monolayer spin coated on a silicon substrate before and after plasma treatment.

Image of FIG. 2.
FIG. 2.

XP spectra of the signal of nanoparticles on a native Si-oxide layer (a) before and after a continuous treatment with oxygen plasma for . Following the exposure, the amount of carbon on the sample surface is below the detection limit. In (b), the data from a similar sample treated with nitrogen plasma for is shown to also be almost completely stripped of carbon.

Image of FIG. 3.
FIG. 3.

XP spectra (normalized to maximum) of the Co and Pt signals (1) in the untreated state, (2) after of exposure to oxygen plasma, and (3) after a subsequent treatment with hydrogen plasma for . Oxidic species are represented by dark gray dashed lines, metallic species by black dashed lines. In the oxygen-treated Co spectrum, only oxidic cobalt and the corresponding shake-up structure were detected, while after hydrogen plasma exposure, a prominent metallic component was found. For Pt, oxygen plasma treatment results in partial oxidation which is fully reversed by a hydrogen plasma. [Note that the higher signal to noise ratio in the case of the Co spectrum (1) is due to the damping of the photoelectrons by the ligand shell.]

Image of FIG. 4.
FIG. 4.

2D GISAXS data for (a) an as-prepared nanoparticle film and (b) a plasma-treated film. The central vertical stripe indicates the position of the semitransparent attenuator. In (c), a one-dimensional fit of the intensity profile (first-order maximum) shows the good agreement of pre- and post-treatment scattering patterns.

Loading

Article metrics loading...

/content/avs/journal/jvsta/26/4/10.1116/1.2936222
2008-07-01
2014-04-21
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Plasma modification of CoPt3 nanoparticle arrays: A route to catalytic coatings of surfaces
http://aip.metastore.ingenta.com/content/avs/journal/jvsta/26/4/10.1116/1.2936222
10.1116/1.2936222
SEARCH_EXPAND_ITEM