Chemical patterning of Ag(111): Spatially confined oxide formation induced by electron beam irradiation

Günther, S.; Reichelt, R.; Wintterlin, J.; Barinov, A.; Menteş, T. O.; Niño, M. Á.; Locatelli, A.
December 2008
Applied Physics Letters;12/8/2008, Vol. 93 Issue 23, p233117
Academic Journal
Low energy electron irradiation of a Ag(111) surface during NO2 adsorption at 300 K induces formation of Ag oxide. Using a spatially confined electron beam, small Ag2O spots could be grown with a sharp, ∼100 nm wide, boundary to the nonirradiated metallic surface. Since the structure size will mainly depend on the sharpness of the irradiating electron beam, this process has the potential of a single step nanostructuring process. Temperature treatment offers an easy way to manipulate the boundary between oxide and metallic silver by steering a chemical front.


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