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Dissociation of molecules on silicon surfaces studied by scanning tunneling microscopy

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dc.contributor.advisor Patitsas, Steve
dc.contributor.author Maraghechi, Pouya
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2008-04-03T21:53:43Z
dc.date.available 2008-04-03T21:53:43Z
dc.date.issued 2007
dc.identifier.uri http://hdl.handle.net/10133/634
dc.description xviii, 175 leaves : ill. (some col.) ; 29 cm en
dc.description.abstract Dissociation of trichloroethylene (TCE) molecules on the Si(111)-7x7 and the Si(100)-2x1 surfaces was studied using STM. Though molecular adsorption may also be observed on the Si(111)-7x7 surface, dissociation is the dominant process. From the STM images acquired, products of dissociation were identified, namely chlorine atoms and dichlorovinyl groups. Dissociation of chlorine from the TCE molecule was confirmed by studying not just appearance in STM images but also from studies of tip-induced diffusion. Different binding configurations were proposed for the vinyl group on the Si (111)-7x7 and the Si(100)-2x1 surfaces. Site preference for each product of dissociation is reported on the Si(111)-7x7 surface. Dissociation of molecules such as ammonia, dimethylamine and methyl chloride on the Si(111)-7x7 and Si(100)-2x1 surfaces is reviewed. The field emission process is explained in detail. The usefulness of making field emission measurements is in evaluating the sharpness of STM tips. en
dc.language.iso en_US en
dc.publisher Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007 en
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en
dc.subject Dissociation en
dc.subject Scanning tunneling microscopy en
dc.subject Silicon -- Surfaces en
dc.subject Surfaces (Physics) -- Research en
dc.subject Trichloroethylene -- Adsorption and absorption en
dc.subject Electronic dissertations en
dc.subject Dissertations, Academic en
dc.title Dissociation of molecules on silicon surfaces studied by scanning tunneling microscopy en
dc.type Thesis en
dc.publisher.faculty Faculty of Arts and Science en
dc.publisher.department Department of Physics en

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