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Details of Grant 

EPSRC Reference: GR/N28177/01
Title: THEORY OF MULTI-TRIBUTARY ENERGY POOLING
Principal Investigator: Andrews, Professor DL
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department: Chemistry
Organisation: University of East Anglia
Scheme: Standard Research (Pre-FEC)
Starts: 09 October 2000 Ends: 08 April 2003 Value (£): 105,715
EPSRC Research Topic Classifications:
Chemical Biology Chemical Structure
EPSRC Industrial Sector Classifications:
Chemicals Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
The Forster theory of resonance energy transfer was first devised to explain the migration of electronic energy from photo-excited donor molecules to acceptors beyond wavefunction overlap. Operative in a wide range of materials and applications, this process plays a central role in light-harvesting materials. At the levels of intensity now routinely applied in ultrafast laser studies of organic and biological materials, the high levels of excitation permit the operation of multi-donor transfer, with some of the first experimental results on twin-donor systems recently reported. The aim of this proposal is to forge a general theory of multi-excitation energy pooling in systems comprising several donors - and to apply it to real systems, fully accommodating the characteristics of the host medium, and suitably addressing both symmetric and symmetry-disrupted systems. The first objective will be to develop fundamental theory for a three-donor system, interrogating the role of threefold symmetry in the donor array, and the effects of its local disruption. Research will then progress to real multi-tributary systems - fully allowing for the proper incorporation of refractive and dissipative effects. The theory is then to be applied to high intensity energy pooling in photoactive dendrimers and other photosynthetic mimics.
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