Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9594964 | Surface Science | 2005 | 9 Pages |
Abstract
Noncontact variable temperature atomic force microscopy has been employed to study the deposition of copper onto thin layers of ice formed on a MgO(1Â 0Â 0) surface. Deposition of submonolayer coverages of copper onto an ice modified oxide surface at 100Â K, followed by annealing to 300Â K, produces uniform nanometer-sized copper particles on the MgO surface. Copper particles resulting from a 0.5 monolayer deposition possess an average diameter of 7Â nm and an average height of 0.3Â nm. Further studies reveal that this buffer-layer-assisted deposition process produces a coverage-dependent density of particles with a narrow size distribution and a resistance to sintering for temperatures up to 750Â K.
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Authors
Gang Liang, Scott S. Perry,