Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1)
We investigate the chemical and structural configuration of acetophenone on Si(0 0 1) using synchrotron radiation core-level spectroscopy techniques and density functional theory calculations. Samples were prepared by vapour phase dosing of clean Si(0 0 1) surfaces with acetophenone in ultrahigh vac...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing Ltd.
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/22991 |
| _version_ | 1848751027184992256 |
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| author | O'Donnell, Kane Warschkow, O. Suleman, A. Fahy, A. Thomsen, L. Schofield, S. |
| author_facet | O'Donnell, Kane Warschkow, O. Suleman, A. Fahy, A. Thomsen, L. Schofield, S. |
| author_sort | O'Donnell, Kane |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We investigate the chemical and structural configuration of acetophenone on Si(0 0 1) using synchrotron radiation core-level spectroscopy techniques and density functional theory calculations. Samples were prepared by vapour phase dosing of clean Si(0 0 1) surfaces with acetophenone in ultrahigh vacuum. Near edge x-ray absorption fine structure spectroscopy and photoelectron spectroscopy measurements were made at room temperature as a function of coverage density and post-deposition anneal temperature. We show that the dominant room temperature adsorption structure lies flat on the substrate, while moderate thermal annealing induces the breaking of Si-C bonds between the phenyl ring and the surface resulting in the reorientation of the adsorbate into an upright configuration. |
| first_indexed | 2025-11-14T07:46:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-22991 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:46:11Z |
| publishDate | 2015 |
| publisher | Institute of Physics Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-229912018-03-29T09:06:47Z Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) O'Donnell, Kane Warschkow, O. Suleman, A. Fahy, A. Thomsen, L. Schofield, S. Si(0 0 1) NEXAFS organic functionalization photoelectron spectroscopy We investigate the chemical and structural configuration of acetophenone on Si(0 0 1) using synchrotron radiation core-level spectroscopy techniques and density functional theory calculations. Samples were prepared by vapour phase dosing of clean Si(0 0 1) surfaces with acetophenone in ultrahigh vacuum. Near edge x-ray absorption fine structure spectroscopy and photoelectron spectroscopy measurements were made at room temperature as a function of coverage density and post-deposition anneal temperature. We show that the dominant room temperature adsorption structure lies flat on the substrate, while moderate thermal annealing induces the breaking of Si-C bonds between the phenyl ring and the surface resulting in the reorientation of the adsorbate into an upright configuration. 2015 Journal Article http://hdl.handle.net/20.500.11937/22991 10.1088/0953-8984/27/5/054002 Institute of Physics Publishing Ltd. restricted |
| spellingShingle | Si(0 0 1) NEXAFS organic functionalization photoelectron spectroscopy O'Donnell, Kane Warschkow, O. Suleman, A. Fahy, A. Thomsen, L. Schofield, S. Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) |
| title | Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) |
| title_full | Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) |
| title_fullStr | Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) |
| title_full_unstemmed | Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) |
| title_short | Manipulating the orientation of an organic adsorbate on silicon: a NEXAFS study of acetophenone on Si(0 0 1) |
| title_sort | manipulating the orientation of an organic adsorbate on silicon: a nexafs study of acetophenone on si(0 0 1) |
| topic | Si(0 0 1) NEXAFS organic functionalization photoelectron spectroscopy |
| url | http://hdl.handle.net/20.500.11937/22991 |