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Photosynthesis
Hierarchical
Photosynthetic Systems
for Photochemical Energy Conversion:
Natural Photosynthesis
The goal of this program is to identify the mechanisms
responsible for optimization of photochemical energy
conversion in natural photosynthesis, and to use this
information for the development of artificial photochemical
systems with enhanced photochemical energy conversion.
Specifically, this project investigates the correlations
between sequential electron transfer with static and
dynamic structures in natural and artificial systems, and
investigates strategies for linking ultrafast, light-induced,
one-electron transfer to slower, energy-conserving redox
and electrochemical processes in artificial photosynthetic
systems using bio-mimetic, hierarchical molecular
architectures. Novel approaches include the use of
isotopically labeled photosynthetic proteins for analysis of
the structure and function of natural photosynthetic systems,
metal-oxide colloids as bio-mimetic photochemical charge
generators, time-resolved and spin polarized electron
paramagnetic resonance spectroscopies for analysis of
sequential electron transfer and electron donor/acceptor
geometries, time-resolved X-ray absorption spectroscopy
for analysis of metal ion structure and function in photosynthetic
chemistry, and the use of X-ray and neutron scattering
techniques for resolving molecular structure and structural
dynamics of photosynthetic assemblies in disordered media.
Summary
Current activities occur in the following program areas:
- Structure
and Energy-Conserving Function
in Natural Photosynthesis
- Electron
Transfer in Hierarchical Photochemical Systems
-
Photosynthetic Model Systems
for Photochemical Energy Conversion
- Molecular
Dynamics and Structure Correlations in Photoinduced Electron Transfer
Return to Photosynthesis
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Glassblowing
Interfacial
Processes
Radiation
and Photochemistry
Photosynthesis
Biological
Materials Growth Facility
Cluster
Studies
Chemical
Dynamics
Atomic Physics
Nanophotonics
Heavy
Elements
Coordination
Chemistry
f-Electron
Interactions
Actinide
Facility
Computational
Materials and Electrochemical Processes
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