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Fractal properties of aggregates of metal nanoclusters on solid surface
- Source :
- Technical Physics. 61:227-232
- Publication Year :
- 2016
- Publisher :
- Pleiades Publishing Ltd, 2016.
-
Abstract
- AFM images are used to determine and analyze fractal characteristics (cluster fraction dimension and lacunarity) of aggregates of Au and Ag nanoclusters on metal films of the same metal produced with the aid of thermal vacuum deposition on mica surface. A fractal dimension of 1.6 that corresponds to typical samples with relatively uniform distribution of nanoclusters on the film surface is in agreement with the mean value calculated from experimental data of Belko et al., who studied the fractal dimension of Au nanoclusters on a different dielectric (quartz) surface. When a compact single aggregate of Au nanoclusters is formed on a certain active center or defect, the fractal cluster dimension decreases to 1.4. The experimental data are compared with the results of existing theoretical models of association of nanoclusters in 2D systems.
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
Nanotechnology
Dielectric
01 natural sciences
Fractal dimension
Nanoclusters
Condensed Matter::Materials Science
Fractal
Vacuum deposition
Chemical physics
Lacunarity
0103 physical sciences
Physics::Atomic and Molecular Clusters
Cluster (physics)
Mica
010306 general physics
Subjects
Details
- ISSN :
- 10906525 and 10637842
- Volume :
- 61
- Database :
- OpenAIRE
- Journal :
- Technical Physics
- Accession number :
- edsair.doi...........91db62bc576f90c9d13b904cbbaaae51