Creating nanoscale Ag patterns on the Si(111)–(√3 × √3)R30°-Ag surface via guided self-assembly

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2012-07-20
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Belianinov, Alex
Ünal, Barış
Tringides, Michael
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Chemistry

The Department of Chemistry seeks to provide students with a foundation in the fundamentals and application of chemical theories and processes of the lab. Thus prepared they me pursue careers as teachers, industry supervisors, or research chemists in a variety of domains (governmental, academic, etc).

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Patterns of Ag nanostructures can be created on the Si(111)–(√3 × √3)R30°-Ag surface, using a simple two-step process in ultrahigh vacuum. First, patterns are created using the tip of a scanning tunneling microscope. Second, Ag is deposited at room temperature. The Ag diffuses over long distances on the surface and selectively aggregates at the patterned regions. The size of the Ag features is ∼3–4 nm.

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The following article appeared in Journal of Vacuum Science and Technology B, 30, no. 5 (Sep/Oct 2012): 050601 and may be found at http://dx.doi.org/10.1116/1.4738745.

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Sun Jan 01 00:00:00 UTC 2012
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