Design principles and fundamental trade-offs in biomimetic light harvesting

@article{Sarovar2012DesignPA,
  title={Design principles and fundamental trade-offs in biomimetic light harvesting},
  author={Mohan Sarovar and K Birgitta Whaley},
  journal={New Journal of Physics},
  year={2012},
  volume={15}
}
Recent developments in synthetic and supramolecular chemistry have created opportunities to design organic systems with tailored nanoscale structure for various technological applications. A key application area is the capture of light energy and its conversion into electrochemical or chemical forms for photovoltaic or sensing applications. In this work we consider cylindrical assemblies of chromophores that model structures produced by several supramolecular techniques. Our study is especially… 

Robust excitons inhabit soft supramolecular nanotubes

This work presents a model system that mirrors nature’s complexity: cylinders self-assembled from cyanine-dye molecules, and suggests that the cylindrical geometry strongly favors robust excitons, allowing construction of efficient light-harvesting devices even from soft, supramolecular materials.

Static Disorder has Dynamic Impact on Energy Transport in Biomimetic Light-Harvesting Complexes

Despite extensive studies, many questions remain about what structural and energetic factors give rise to the remarkable energy transport efficiency of photosynthetic light-harvesting protein

Filling the Green Gap of a Megadalton Photosystem I Complex by Conjugation of Organic Dyes.

Inspired by the existence of natural phycobilisome light-harvesting antennae, this work has widened the absorption spectrum of PSI by covalent attachment of synthetic dyes to the protein backbone by showing by oxygen-consumption measurements that subsequent charge generation is substantially enhanced under broad and narrow band excitation.

Structure and Efficiency in Bacterial Photosynthetic Light-Harvesting.

This model describes the experimentally observed high efficiency of light harvesting, despite the absence of long-range quantum coherence, and helps explain the high transport efficiency in organisms with widely differing antenna structures, and suggests new design criteria for artificial light-harvesting devices.

Mimicking Ultrafast Biological Systems

This chapter explores ultrafast photonic functionalities of certain proteins in plants and higher organisms and their potential role in designing new devices that mimic natural systems possessing

Long-range energy transport in photosystem II.

The natural parameters lie in a (broad) region that enables optimal transfer efficiency and that the overall long-range energy transfer on a ns time scale appears to be very robust with respect to variations in the vibronic coupling of up to an order of magnitude.

Quantum traits in the dynamics of biomolecular systems

The majority of biology can be adequately described by classical laws, yet there are suggestions that a variety of organisms may harness non-trivial quantum phenomena to gain a biological advantage.

Environment-Assisted Modulation of Heat Flux in a Bio-Inspired System Based on Collision Model

The high energy transfer efficiency of photosynthetic complexes has been a topic of research across many disciplines. Several attempts have been made in order to explain this energy transfer

Long-range coherent energy transport in Photosystem II

We simulate the long-range inter-complex electronic energy transfer in Photosystem II – from the antenna complex, via a core complex, to the reaction center – using a non-Markovian (ZOFE) quantum

Ab initio calculation of molecular aggregation effects: a Coumarin-343 case study.

We present time-dependent density functional theory (TDDFT) calculations for single and dimerized Coumarin-343 molecules to investigate the quantum mechanical effects of chromophore aggregation in

References

SHOWING 1-10 OF 57 REFERENCES

Virus-templated assembly of porphyrins into light-harvesting nanoantennae.

This work shows the arrangement of molecular pigments into a one-dimensional light-harvesting antenna using M13 viruses as scaffolds and suggests a hypothetical model to explain the energy transfer occurring in the supramolecular porphyrin structures templated with the virus.

Self-assembling light-harvesting systems from synthetically modified tobacco mosaic virus coat proteins.

Characterization of the system using fluorescence spectroscopy indicated that efficient energy transfer could be achieved from large numbers of donor chromophores to a single acceptor, and energy transfer is proposed to occur through direct donor-acceptor interactions, although degenerate donor-to-donor transfer events are also possible.

Optimal and robust energy transport in light-harvesting complexes: (II) A quantum interplay of multichromophoric geometries and environmental interactions

Today, the physical principles for the high efficiency of excitation energy transfer in light-harvesting complexes are still not fully understood. Notably, the degree of robustness of these systems

Uniform exciton fluorescence from individual molecular nanotubes immobilized on solid substrates.

Here, a drop-flow technique is used to immobilize double-walled tubular J-aggregates of amphiphilic cyanine dyes without affecting their morphological or optical properties, demonstrating their potential for light harvesting and energy transport.

Porphyrin light-harvesting arrays constructed in the recombinant tobacco mosaic virus scaffold.

The results indicate that the porphyrins are placed at the expected positions in the TMV assembly, which is similar to native TMV assemblies.

Highly efficient energy excitation transfer in light-harvesting complexes: The fundamental role of n

This work identifies key mechanisms through which noise such as dephasing, perhaps counter intuitively, may actually aid transport through a dissipative network by opening up additional pathways for excitation transfer.

Efficient energy transfer in light-harvesting systems, I: optimal temperature, reorganization energy and spatial–temporal correlations

Understanding the mechanisms of efficient and robust energy transfer in light-harvesting systems provides new insights for the optimal design of artificial systems. In this paper, we use the

III–V multijunction solar cells for concentrating photovoltaics

Concerns about the changing environment and fossil fuel depletion have prompted much controversy and scrutiny. One way to address these issues is to use concentrating photovoltaics (CPV) as an

Virus-Enabled Synthesis and Assembly of Nanowires for Lithium Ion Battery Electrodes

Combining virus-templated synthesis at the peptide level and methods for controlling two-dimensional assembly of viruses on polyelectrolyte multilayers provides a systematic platform for integrating these nanomaterials to form thin, flexible lithium ion batteries.
...