Engineering antiparallel charge-transfer cascades into supramolecular n/p-heterojunction photosystems: Toward directional self-sorting on surfaces
| Autor: | Edvinas Orentas, Pierre Charbonnaz, Marco Lista, Stefan Matile, Jetsuda Areephong, Naomi Sakai |
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| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Models
Molecular Bioelectric Energy Sources Photochemistry Static Electricity Supramolecular chemistry Nanotechnology Electrons Antiparallel (biochemistry) Artificial photosynthesis Electron Transport chemistry.chemical_compound Solar Energy Physical and Theoretical Chemistry Photosynthesis Photosystem Photocurrent Heterojunction Green Chemistry Technology Chemical Engineering chemistry Photoinduced charge separation Chemical physics Biofuels ddc:540 Sunlight Organic synthesis Oxidation-Reduction |
| Zdroj: | Faraday Discussions, Vol. 155 (2012) pp. 63-77 Faraday Disc. |
| ISSN: | 1364-5498 |
| Popis: | This contribution describes recent progress made with the design synthesis 10 and evaluation of supramolecular architectures for artificial photosynthesis. Emphasis is on the possible introduction of antiparallel redox gradients into the co axial hole and electron transporting channels of supramolecular n/p heterojunctions and on directional uniform axial and alternate lateral self sorting to get there. Recent results suggest that two component 15 gradients in both channels are sufficient for photoinduced charge separation over very long distances. Removal of one gradient leads to charge recombination at the usual critical distances inversion of both gradients causes photocurrent inhibition. These promising results call for user friendly cheap and fast approaches to oriented multicomponent 20 architectures on solid surfaces. However the reduction of efforts devoted to covalent organic synthesis will have to be compensated by the development of strategic concepts on the supramolecular level to tackle basic questions such as self sorting on surfaces. |
| Databáze: | OpenAIRE |
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