dc.contributor.author | Hesse, E. | |
dc.contributor.author | Creighton, J.A. | |
dc.date.accessioned | 2009-12-09T12:00:04Z | |
dc.date.available | 2009-12-09T12:00:04Z | |
dc.date.issued | 1999 | |
dc.identifier.citation | Hesse , E & Creighton , J A 1999 , ' Investigation by surface enhanced Raman spectroscopy of the effect of oxygen or hydrogen plasmas on the surface chemistry of adsorbate-covered gold island films ' , Langmuir , vol. 15 , no. 10 , pp. 3545-3550 . https://doi.org/10.1021/la9813578 | |
dc.identifier.issn | 0743-7463 | |
dc.identifier.other | PURE: 173208 | |
dc.identifier.other | PURE UUID: d215831f-4f60-43ab-ac8d-feddabd29d17 | |
dc.identifier.other | dspace: 2299/4084 | |
dc.identifier.other | Scopus: 0032677232 | |
dc.identifier.other | ORCID: /0000-0002-2721-7600/work/62749862 | |
dc.identifier.uri | http://hdl.handle.net/2299/4084 | |
dc.description | Original article can be found at: http://pubs.acs.org/loi/langd5 Copyright American Chemical Society. DOI: 10.1021/la9813578 [Full text of this article is not available in the UHRA] | |
dc.description.abstract | The effects of radio-frequency-excited oxygen and hydrogen plasmas on gold island films with adsorbed CN-, thiophenate, or p-nitrobenzoate ions have been investigated by surface-enhanced Raman spectroscopy (SERS). An oxygen plasma caused oxidation of adsorbed CN- to Au(CN)4-, and there was evidence of oxidation of the adsorption site gold atoms at the Au/p-nitrobenzoate surface, while in a hydrogen plasma Au(CN)4- was reduced back to adsorbed CN-. No adsorbed oxidation or reduction products of thiophenate or p-nitrobenzoate were detected, however. Exposure of gold films to an oxygen or hydrogen plasma also caused partial removal of the adsorbates, though with some loss of SERS activity, and in a hydrogen plasma thiophenate was preferentially removed from a gold film with coadsorbed thiophenate and CN-. On silver films, hydrogen plasma treatment almost completely removed adsorbed CN- with only a small loss of SERS activity, but in an oxygen plasma the films were rapidly destroyed. | en |
dc.language.iso | eng | |
dc.relation.ispartof | Langmuir | |
dc.title | Investigation by surface enhanced Raman spectroscopy of the effect of oxygen or hydrogen plasmas on the surface chemistry of adsorbate-covered gold island films | en |
dc.contributor.institution | Centre for Atmospheric and Climate Physics Research | |
dc.contributor.institution | Light Scattering and Radiative Processes | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | https://doi.org/10.1021/la9813578 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |