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Vac. Sci. Technol. B32, 031803 (2014).
Armen Julukian1, Steinar Raaen1 , David Franke2
1 Physics Department, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
2 Department of Materials Science and Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
Abstract
Formation of unique shapes and geometries was obtained by evaporation of platinum onto a polycrystalline graphite foil. This study was done using scanning electron microscopy, atomic force microscopy, and photoelectron spectroscopy. The evolution of complex nanostructures was observed for various amounts of Pt deposition, and the observed structures were discussed in terms of the average fractal dimension. The fractal dimension was found to increase with increasing deposition of Pt and was found to be in the range from 1.2 to 1.6 in the submonolayer coverage regime as investigated. The changes in the average fractal dimension were correlated with the corresponding changes of the average size and width of the branches of the structures. A logarithmic dependence of the average size of the deposited structures on corresponding amount Pt deposited was found.
© 2014 American Vacuum Society
