Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate
The interaction of the dye molecule N3 (cis-bis(isothiocyanato)bis(2,2-bipyridyl-4,4′-dicarbo-xylato)-ruthenium(II)) with the ultra-thin oxide layer on a AlNi(110) substrate, has been studied using synchrotron radiation based photoelectron spectroscopy, resonant photoemission spectroscopy, and near...
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| Format: | Article |
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American Institute of Physics
2014
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| Online Access: | https://eprints.nottingham.ac.uk/31729/ |
| _version_ | 1848794262060138496 |
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| author | Gibson, Andrew J. Temperton, Robert H. Handrup, Karsten Weston, Matthew Mayor, Louise Charlotte O'Shea, James N. |
| author_facet | Gibson, Andrew J. Temperton, Robert H. Handrup, Karsten Weston, Matthew Mayor, Louise Charlotte O'Shea, James N. |
| author_sort | Gibson, Andrew J. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The interaction of the dye molecule N3 (cis-bis(isothiocyanato)bis(2,2-bipyridyl-4,4′-dicarbo-xylato)-ruthenium(II)) with the ultra-thin oxide layer on a AlNi(110) substrate, has been studied using synchrotron radiation based photoelectron spectroscopy, resonant photoemission spectroscopy, and near edge X-ray absorption fine structure spectroscopy. Calibrated X-ray absorption and valence band spectra of the monolayer and multilayer coverages reveal that charge transfer is possible from the molecule to the AlNi(110) substrate via tunnelling through the ultra-thin oxide layer and into the conduction band edge of the substrate. This charge transfer mechanism is possible from the LUMO+2 and 3 in the excited state but not from the LUMO, therefore enabling core-hole clock analysis, which gives an upper limit of 6.0 ± 2.5 fs for the transfer time. This indicates that ultra-thin oxide layers are a viable material for use in dye-sensitized solar cells, which may lead to reduced recombination effects and improved efficiencies of future devices. |
| first_indexed | 2025-11-14T19:13:23Z |
| format | Article |
| id | nottingham-31729 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:13:23Z |
| publishDate | 2014 |
| publisher | American Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-317292020-05-04T16:49:14Z https://eprints.nottingham.ac.uk/31729/ Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate Gibson, Andrew J. Temperton, Robert H. Handrup, Karsten Weston, Matthew Mayor, Louise Charlotte O'Shea, James N. The interaction of the dye molecule N3 (cis-bis(isothiocyanato)bis(2,2-bipyridyl-4,4′-dicarbo-xylato)-ruthenium(II)) with the ultra-thin oxide layer on a AlNi(110) substrate, has been studied using synchrotron radiation based photoelectron spectroscopy, resonant photoemission spectroscopy, and near edge X-ray absorption fine structure spectroscopy. Calibrated X-ray absorption and valence band spectra of the monolayer and multilayer coverages reveal that charge transfer is possible from the molecule to the AlNi(110) substrate via tunnelling through the ultra-thin oxide layer and into the conduction band edge of the substrate. This charge transfer mechanism is possible from the LUMO+2 and 3 in the excited state but not from the LUMO, therefore enabling core-hole clock analysis, which gives an upper limit of 6.0 ± 2.5 fs for the transfer time. This indicates that ultra-thin oxide layers are a viable material for use in dye-sensitized solar cells, which may lead to reduced recombination effects and improved efficiencies of future devices. American Institute of Physics 2014-06-20 Article PeerReviewed Gibson, Andrew J., Temperton, Robert H., Handrup, Karsten, Weston, Matthew, Mayor, Louise Charlotte and O'Shea, James N. (2014) Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate. Journal of Chemical Physics, 140 (234708). 234708/1-234708/7. ISSN 1089-7690 charge transfer surface photoemission monolayers multilayers x-ray absorption http://scitation.aip.org/content/aip/journal/jcp/140/23/10.1063/1.4882867 doi:10.1063/1.4882867 doi:10.1063/1.4882867 |
| spellingShingle | charge transfer surface photoemission monolayers multilayers x-ray absorption Gibson, Andrew J. Temperton, Robert H. Handrup, Karsten Weston, Matthew Mayor, Louise Charlotte O'Shea, James N. Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| title | Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| title_full | Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| title_fullStr | Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| title_full_unstemmed | Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| title_short | Charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| title_sort | charge transfer from an adsorbed ruthenium-based photosensitizer through an ultra-thin aluminium oxide layer and into a metallic substrate |
| topic | charge transfer surface photoemission monolayers multilayers x-ray absorption |
| url | https://eprints.nottingham.ac.uk/31729/ https://eprints.nottingham.ac.uk/31729/ https://eprints.nottingham.ac.uk/31729/ |