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Vanadia-based equilibrium-thickness amorphous films on anatase (101) surfaces
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) HRTEM image of a vanadia-based SAF formed at . (b) An expanded view of a selected segment of this SAF. (c) Pixel (gray level) intensities averaged along the horizontal axis. The partial layering order in the film matches that of the crystal as shown in (d).

Image of FIG. 2.
FIG. 2.

Film thickness vs (a) nominal loading and (b) anneal time for specimens annealed at . Once an equilibrium state is reached, these films exhibit an equilibrium thickness, independent of the additional annealing time, the loading, and synthesis methods.

Image of FIG. 3.
FIG. 3.

Average film thickness vs equilibration temperature for two sets of specimens where the equilibrium states were approached from lower and higher temperatures, respectively. The overall average thickness for 119 SAFs formed at via different processing routes (∎) and the mean thickness of SAFs formed in a specimen prepared with the MTI 99.99% anatase powder (Ref. 15) (▴) are also shown for comparison. The solid line was computed using Eq. (3) with the following parameters: , , , , and . The dotted (trend) lines are added as a guide for the eyes.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Vanadia-based equilibrium-thickness amorphous films on anatase (101) surfaces