| EPSRC Reference: |
GR/R33397/01 |
| Title: |
Optical Spectrpscopy of Indivividual Single-Walled Carbon Nanotubes |
| Principal Investigator: |
Smith, Professor DC |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Physics and Astronomy |
| Organisation: |
University of Southampton |
| Scheme: |
Fast Stream |
| Starts: |
17 January 2002 |
Ends: |
16 January 2004 |
Value (£): |
60,520
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| EPSRC Research Topic Classifications: |
| Condensed Matter Physics |
Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Electronics |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The central aim of this project is to perform optical spectroscopy on individual single-walled carbon nanotubes, with a particular focus on semiconducting nanotubes. The power of optical spectroscopy will be used to investigate a wide range of physics. In particular, spectroscopic measurements will be used to determine the nanotube's bandstructure. This information, in conjunction with scanning tunnelling microscope measurements of the nanotubes diameter and chirality, will be used to challenge and quantify the models of the bandstructure that have already been developed. The knowledge gained from these measurements will be used to aid the development of a simple, non-contact method to determine a nanotubes diameter and chirality using optical spectroscopy. Optical spectroscopy will also be used to investigate the strong electronic correlations expected in nanotubes due to their 1 D nature, and in particular excitonic singularities.These objectives will require the development of a nanotube growth facility in collaboration with the National Silicon Fabrication facility to produce electrically contacted carbon nanotubes. It is proposed to use photocurrent spectroscopy to measure the optical properties of the nanotubes as this has two critical advantages; (i) the nanotube being studied is clearly defined by the electrical contacts, (ii) photocurrent spectroscopy is sensitive only to the small fraction of light absorbed. As the nanotubes are expected to have small optical absorption it is proposed to use an intense coherent light source.
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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 |
| Summary |
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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.soton.ac.uk |