EPSRC Reference: |
GR/M53967/01 |
Title: |
MICROSCOPIC MECHANISM OF ADSORBATE PHOTOCHEMISTRY |
Principal Investigator: |
Meech, Professor S |
Other Investigators: |
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Researcher Co-Investigators: |
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Project Partners: |
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Department: |
Chemistry |
Organisation: |
University of East Anglia |
Scheme: |
Standard Research (Pre-FEC) |
Starts: |
01 October 1999 |
Ends: |
30 September 2002 |
Value (£): |
134,248
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EPSRC Research Topic Classifications: |
Electrochemical Science & Eng. |
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EPSRC Industrial Sector Classifications: |
Chemicals |
Electronics |
No relevance to Underpinning Sectors |
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Related Grants: |
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Panel History: |
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Summary on Grant Application Form |
An apparatus has been constructed which permits the analysis of monolayer photochemical reaction mechanisms on well defined surfaces. The work proposed will extend the capability of the instrument to dynamical measurements, and apply it to a broad range of substrates and adsorbates of both fundamental and technological significance. We will establish the mechanism for the photochemistry of a range of adsorbates on clean metal surfaces by comparing the results of classical calculations with measurements of the polarisation and wavelength dependence of the photochemical yield, and of the translational energy of the products. This range of data will lead to general conclusions on the mechanism of photochemistry on metal surfaces.The measurements will be extended to oxide surfaces. Such surfaces provide a range of sites for adsorption, and present different modes of excitation (for example bandgap or surface state excitation). The photochemical mechanism will be studied, and we will look for site dependent effects.Our recent observation of surface plasmon excitation enhanced hot electron induced photochemistry on microscopically rough surfaces will be extended to other systems. We will investigate systems that for the first times, permit a proper test of the theory of surface enhanced photochemistry (the photochemical analog of SERS).
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
Description |
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Summary |
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Date Materialised |
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Sectors submitted by the Researcher |
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Project URL: |
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Further Information: |
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Organisation Website: |
http://www.uea.ac.uk |