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Issue 11, 2012
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Assemblies of artificial photosynthetic reaction centres

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Nature harnesses solar energy for photosynthesis in which one reaction centre is associated with a number of light harvesting units. The reaction centre and light-harvesting units are assembled by non-covalent interactions such as hydrogen bonding and π–π interactions. This article presents various strategies to assemble artificial photosynthetic reaction centres composed of multiple light harvesting units and charge-separation units, which are connected by non-covalent bonding as well as covalent bonding. First light-harvesting units are assembled on alkanethiolate-monolayer-protected metal nanoparticles (MNPs), which are connected with electron acceptors by non-covalent bonding. Light-harvesting units can also be assembled using dendrimers and oligopeptides to combine with electron acceptors by π–π interactions. The cup-shaped nanocarbons generated by the electron-transfer reduction of cup-stacked carbon nanotubes have been functionalized with a number of porphyrins acting as light-harvesting units as well as electron donors. In each case, the photodynamics of assemblies of artificial photosynthetic reaction centres have revealed efficient energy transfer and electron transfer to afford long-lived charge-separated states.

Graphical abstract: Assemblies of artificial photosynthetic reaction centres

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The article was received on 01 Nov 2011, accepted on 13 Dec 2011 and first published on 23 Jan 2012

Article type: Feature Article
DOI: 10.1039/C2JM15585K
J. Mater. Chem., 2012,22, 4575-4587

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    Assemblies of artificial photosynthetic reaction centres

    S. Fukuzumi and K. Ohkubo, J. Mater. Chem., 2012, 22, 4575
    DOI: 10.1039/C2JM15585K

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