Enhanced energy transport in genetically engineered excitonic networks
One of the challenges for achieving efficient exciton transport in solar energy conversion systems is precise structural control of the light-harvesting building blocks. Here, we create a tunable material consisting of a connected chromophore network on an ordered biological virus template. Using ge...
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| Veröffentlicht in: | Nature materials 2016-02, Vol.15 (2), p.211-216 |
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| creator | Park, Heechul Heldman, Nimrod Rebentrost, Patrick Abbondanza, Luigi Iagatti, Alessandro Alessi, Andrea Patrizi, Barbara Salvalaggio, Mario Bussotti, Laura Mohseni, Masoud Caruso, Filippo Johnsen, Hannah C. Fusco, Roberto Foggi, Paolo Scudo, Petra F. Lloyd, Seth Belcher, Angela M. |
| description | One of the challenges for achieving efficient exciton transport in solar energy conversion systems is precise structural control of the light-harvesting building blocks. Here, we create a tunable material consisting of a connected chromophore network on an ordered biological virus template. Using genetic engineering, we establish a link between the inter-chromophoric distances and emerging transport properties. The combination of spectroscopy measurements and dynamic modelling enables us to elucidate quantum coherent and classical incoherent energy transport at room temperature. Through genetic modifications, we obtain a significant enhancement of exciton diffusion length of about 68% in an intermediate quantum-classical regime.
A super-Förster energy-transfer regime, where coherent and incoherent energy transport processes enhance the diffusion of excitons, is observed at room temperature by tuning the distance between the chromophores’ binding sites in a virus scaffold. |
| doi_str_mv | 10.1038/nmat4448 |
| format | Article |
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A super-Förster energy-transfer regime, where coherent and incoherent energy transport processes enhance the diffusion of excitons, is observed at room temperature by tuning the distance between the chromophores’ binding sites in a virus scaffold.</description><subject>119/118</subject><subject>140/125</subject><subject>639/301/54/989</subject><subject>639/638/439/943</subject><subject>639/638/440/948</subject><subject>639/766/483/1139</subject><subject>Biological</subject><subject>Biomaterials</subject><subject>Computer Simulation</subject><subject>Condensed Matter Physics</subject><subject>Dynamical systems</subject><subject>Dynamics</subject><subject>Electrochemistry</subject><subject>Energy conversion</subject><subject>Energy Transfer</subject><subject>Excitation</subject><subject>Genetic Engineering</subject><subject>Materials Science</subject><subject>Materials Testing</subject><subject>Models, 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| subjects | 119/118 140/125 639/301/54/989 639/638/439/943 639/638/440/948 639/766/483/1139 Biological Biomaterials Computer Simulation Condensed Matter Physics Dynamical systems Dynamics Electrochemistry Energy conversion Energy Transfer Excitation Genetic Engineering Materials Science Materials Testing Models, Theoretical Nanotechnology Networks Optical and Electronic Materials Solar energy Spectroscopy Spectrum Analysis Temperature Transport Viruses |
| title | Enhanced energy transport in genetically engineered excitonic networks |
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