DC Field | Value | Language |
---|---|---|
dc.contributor.author | Joo, SW | ko |
dc.contributor.author | Han, Sang Woo | ko |
dc.contributor.author | Kim, K | ko |
dc.date.accessioned | 2013-03-02T20:47:50Z | - |
dc.date.available | 2013-03-02T20:47:50Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1999-12 | - |
dc.identifier.citation | JOURNAL OF PHYSICAL CHEMISTRY B, v.103, no.49, pp.10831 - 10837 | - |
dc.identifier.issn | 1089-5647 | - |
dc.identifier.uri | http://hdl.handle.net/10203/75456 | - |
dc.description.abstract | The adsorption behavior of p-xylene-alpha, alpha'-dithiol (p-XDT) on colloidal gold and silver surfaces has been investigated by means of surface-enhanced Raman scattering (SERS). p-XDT chemisorbed dissociatively on both the gold and silver surfaces but as mono- and dithiolate, respectively. Regardless of the bulk concentration of p-XDT, only a monolayer was assembled on the silver surface with a flat orientation by forming two Ag-S bonds. On the gold surface, the monothiolate species, p-XDT1-, appeared to assume a rather flat orientation at a very low surface coverage, but as the surface coverage was increased, the adsorbate took a perpendicular orientation. Furthermore, when the bulk concentration of p-XDT was close to that required for a full-monolayer coverage limit, a band assignable to the S-S stretching vibration appeared at similar to 509 cm(-1) in the gold sol SER spectra. A separate ellipsometry measurement performed with vacuum-evaporated gold substrates revealed that up to trilayers could be assembled on gold in 1 mM n-hexane solution of p-XDT while only a monolayer formed in either methanol or ethanol solution. Although the exact causes were uncertain, such a difference in behavior seemed to have nothing to do with the oxygen species present in ethanol or methanol solution. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Adsorption characteristics of p-xylene-alpha,alpha -dithol on gold and silver surfaces: Surface-enhanced Raman scattering and ellipsometry study | - |
dc.type | Article | - |
dc.identifier.wosid | 000084318600013 | - |
dc.identifier.scopusid | 2-s2.0-0000987348 | - |
dc.type.rims | ART | - |
dc.citation.volume | 103 | - |
dc.citation.issue | 49 | - |
dc.citation.beginningpage | 10831 | - |
dc.citation.endingpage | 10837 | - |
dc.citation.publicationname | JOURNAL OF PHYSICAL CHEMISTRY B | - |
dc.identifier.doi | 10.1021/jp992230+ | - |
dc.contributor.localauthor | Han, Sang Woo | - |
dc.contributor.nonIdAuthor | Joo, SW | - |
dc.contributor.nonIdAuthor | Kim, K | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SELF-ASSEMBLED MONOLAYERS | - |
dc.subject.keywordPlus | THIOL MONOLAYERS | - |
dc.subject.keywordPlus | SELECTION-RULES | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | AU | - |
dc.subject.keywordPlus | AG | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | 1-ALKANETHIOLS | - |
dc.subject.keywordPlus | MULTILAYERS | - |
dc.subject.keywordPlus | DEPENDENCE | - |
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