| EPSRC Reference: |
GR/H66419/01 |
| Title: |
FEMTOSECOND SPECTROSCOPY OF CONJUGATED POLYMERS |
| Principal Investigator: |
Friend, Professor Sir R |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 1993 |
Ends: |
30 April 1995 |
Value (£): |
153,621
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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The aim of this project is to develop the femtosecond laser facility that we have established in the Cavendish and to use it to obtain measurements of transient optical and electrical responses in a range of conjugated polymers synthesised in the Department of Chemistry in Cambridge in the group of Dr A B Holmes. The present laser system comprises a mode-locked Nd:YAG laser which synchronously pumps a dye laser to produce 100fsec pulses at 630nm. These short pulses can be amplified using an amplified chain pumped by the doubled output from a regenerative Nd:YAG laser at 1 kHz and the amplified pulses can be used to generate a white light continuum. Developments will improve signal acquisition, reamplify the continuum for frequency-selective pumping, and improve laser stability. Measurements of transient absorption, luminescence and photoconductivity will be made on a range of poly(arylenevinylenes). These will give information about charge separation and exciton formation at very short times, and the evolution of bipolarons and triplet excitons at longer times.
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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.cam.ac.uk |