Initial stage of the adsorption of fluorofullerene molecules on Si surfaceстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Spatially resolved images of an individual C(60)F(18) fluorofullerene molecule on Si(100) - 2 x 1 surface have been obtained using scanning tunneling microscopy. Scanning tunneling microscopy results and ab initio calculations show that the fluorofullerene molecules interact with the Si(100) - 2 x 1 surface with F atoms pointing down towards the surface. The adsorption energy of a C(60)F(18) molecule on Si(100) - 2 x 1 surface is similar to 12.1 eV, which is much higher than the adsorption energy of the same molecule on Si(111) - 7 x 7 surface (6.65 eV). C(60)F(18) molecules are located in the troughs in-between the dimer rows occupying the four-dimer site on Si(100) - 2 x 1 surface.