In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS)
Thermal desorption investigations on self-assembled monolayers (SAMs) had previously been carried out using techniques such as thermal desorption spectroscopy (TDS), scannin...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/92546 http://hdl.handle.net/10220/6206 |
| _version_ | 1811681101819674624 |
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| author | Wong, Chee Cheong Romanato, Filippo Lee, Kwang Hong Ang, X. F. Li, J. |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Wong, Chee Cheong Romanato, Filippo Lee, Kwang Hong Ang, X. F. Li, J. |
| author_sort | Wong, Chee Cheong |
| collection | NTU |
| description | Thermal desorption investigations on self-assembled monolayers (SAMs) had previously been carried
out using techniques such as thermal desorption spectroscopy (TDS), scanning tunneling
microscopy (STM) and X-ray photo-electron spectroscopy (XPS). In this paper, the thermal dissociation of alkanethiols (CnH2n+1SH) at various chain lengths (n = 6, 12, 18) on sputtered gold layers was monitored in-situ using the Kretschmann surface plasmon resonance configuration on a
spectroscopic ellipsometer. We found that the longest alkanethiol (C18 exhibits the greatest thermal
stability, manifested by the least amount of angular shift, during heating, in the resonant spectral features. Predictions of desorption temperatures from SPRS for the longer chain thiols are in good agreement with XPS measurements. |
| first_indexed | 2024-10-01T03:35:36Z |
| format | Journal Article |
| id | ntu-10356/92546 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:35:36Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | ntu-10356/925462020-06-01T10:13:46Z In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) Wong, Chee Cheong Romanato, Filippo Lee, Kwang Hong Ang, X. F. Li, J. School of Materials Science & Engineering DRNTU::Engineering::Materials::Plasma treatment Thermal desorption investigations on self-assembled monolayers (SAMs) had previously been carried out using techniques such as thermal desorption spectroscopy (TDS), scanning tunneling microscopy (STM) and X-ray photo-electron spectroscopy (XPS). In this paper, the thermal dissociation of alkanethiols (CnH2n+1SH) at various chain lengths (n = 6, 12, 18) on sputtered gold layers was monitored in-situ using the Kretschmann surface plasmon resonance configuration on a spectroscopic ellipsometer. We found that the longest alkanethiol (C18 exhibits the greatest thermal stability, manifested by the least amount of angular shift, during heating, in the resonant spectral features. Predictions of desorption temperatures from SPRS for the longer chain thiols are in good agreement with XPS measurements. Accepted version 2010-03-23T05:58:31Z 2019-12-06T18:25:01Z 2010-03-23T05:58:31Z 2019-12-06T18:25:01Z 2010 2010 Journal Article Wong, C. C., Romanto, F. , Lee, K. H., Ang, X. F., & Li, J. (2010). In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS). Journal of Nanoscience and Nanotechnology. 1533-4880 https://hdl.handle.net/10356/92546 http://hdl.handle.net/10220/6206 151099 en Journal of nanoscience and nanotechnology |
| spellingShingle | DRNTU::Engineering::Materials::Plasma treatment Wong, Chee Cheong Romanato, Filippo Lee, Kwang Hong Ang, X. F. Li, J. In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) |
| title | In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) |
| title_full | In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) |
| title_fullStr | In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) |
| title_full_unstemmed | In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) |
| title_short | In-situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy (SPRS) |
| title_sort | in situ monitoring of the thermal desorption of alkanethiols with surface plasmon resonance spectroscopy sprs |
| topic | DRNTU::Engineering::Materials::Plasma treatment |
| url | https://hdl.handle.net/10356/92546 http://hdl.handle.net/10220/6206 |
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