| EPSRC Reference: |
GR/S59970/01 |
| Title: |
Synchrotron X-ray Emission Spectroscopy of passivated Si-Q dots at Max-lab |
| Principal Investigator: |
Siller, Professor L |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Chemical Engineering & Advanced Material |
| Organisation: |
Newcastle University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
10 June 2003 |
Ends: |
09 December 2003 |
Value (£): |
8,060
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| Panel History: |
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Summary on Grant Application Form |
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A new method for production of Si - quantum dots (0- dots) of uniform size, which luminesce with orange light and are passivated by alkyl chains has been recently developed by our collaborators in the School of Natural Sciences. The novelty in this method of preparation is that the suspension of Qdots is -30 times more luminescent than the porous silicon sample from which it is produced and that it is possible to produce the Si Q-dots in milligram quantities rather than in micrograms. Such quantities enable the study of bulk/surface excitation by synchrotron radiation. Here we propose employing synchrotron radiation induced X-ray emission from these Q-dots in order to determine the local partial density of states for silicon in different chemical environments. This information will enable the role of the outermost Si atoms, bound to the alkyl chains to be elucidated. We believe that this study will highlight the origin of luminescence in this system.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.ncl.ac.uk |