Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies
The reaction of hydrogen-terminated Si(100) with 1,8-nonadiyne was previously shown to afford robust surfaces where oxidation of the substrate is not evident. Here, the experimental conditions required for reacting hydrogen-terminated Si(100) with α,ω-diynes of different lengths is explored via ther...
| Main Authors: | , , , , |
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| Format: | Article |
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Wiley
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/79942/ |
| _version_ | 1848858793155231744 |
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| author | A. Ahmad, Shahrul A. Ciampi, Simone Parker, Stephen G. Gonçales, Vinicius R. Gooding, J. Justin |
| author_facet | A. Ahmad, Shahrul A. Ciampi, Simone Parker, Stephen G. Gonçales, Vinicius R. Gooding, J. Justin |
| author_sort | A. Ahmad, Shahrul A. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The reaction of hydrogen-terminated Si(100) with 1,8-nonadiyne was previously shown to afford robust surfaces where oxidation of the substrate is not evident. Here, the experimental conditions required for reacting hydrogen-terminated Si(100) with α,ω-diynes of different lengths is explored via thermal hydrosilylation of 1,6-heptadiyne, 1,8-nonadiyne, 1,10-undecadiyne and 1,15-hexadecadiyne. X-ray photoelectron spectroscopy indicated monolayers were successfully formed with oxide levels below the XPS detection limit for molecules with lengths varying from 7 to 11 carbons. It was observed that the apparent rate of electron transfer (ket) was affected not only by the SAM thickness, but also by hopping between ferrocene moieties where the presence of tiny oxidative defects act as electron transfer hotspots. |
| first_indexed | 2025-11-15T12:19:05Z |
| format | Article |
| id | upm-79942 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T12:19:05Z |
| publishDate | 2019 |
| publisher | Wiley |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-799422023-03-30T05:52:56Z http://psasir.upm.edu.my/id/eprint/79942/ Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies A. Ahmad, Shahrul A. Ciampi, Simone Parker, Stephen G. Gonçales, Vinicius R. Gooding, J. Justin The reaction of hydrogen-terminated Si(100) with 1,8-nonadiyne was previously shown to afford robust surfaces where oxidation of the substrate is not evident. Here, the experimental conditions required for reacting hydrogen-terminated Si(100) with α,ω-diynes of different lengths is explored via thermal hydrosilylation of 1,6-heptadiyne, 1,8-nonadiyne, 1,10-undecadiyne and 1,15-hexadecadiyne. X-ray photoelectron spectroscopy indicated monolayers were successfully formed with oxide levels below the XPS detection limit for molecules with lengths varying from 7 to 11 carbons. It was observed that the apparent rate of electron transfer (ket) was affected not only by the SAM thickness, but also by hopping between ferrocene moieties where the presence of tiny oxidative defects act as electron transfer hotspots. Wiley 2019 Article PeerReviewed A. Ahmad, Shahrul A. and Ciampi, Simone and Parker, Stephen G. and Gonçales, Vinicius R. and Gooding, J. Justin (2019) Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies. ChemElectroChem, 6 (1). pp. 211-220. ISSN 2196-0216 https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/celc.201800717 |
| spellingShingle | A. Ahmad, Shahrul A. Ciampi, Simone Parker, Stephen G. Gonçales, Vinicius R. Gooding, J. Justin Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| title | Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| title_full | Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| title_fullStr | Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| title_full_unstemmed | Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| title_short | Forming ferrocenyl self‐assembled monolayers on Si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| title_sort | forming ferrocenyl self‐assembled monolayers on si(100) electrodes with different alkyl chain lengths for electron transfer studies |
| url | http://psasir.upm.edu.my/id/eprint/79942/ http://psasir.upm.edu.my/id/eprint/79942/ |