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| - Effects of Fullerene Substituents on Structure and Photoelectrochemical Properties ofFullerene Nanoclusters Electrophoretically Deposited on Nanostructured SnO2 Electrodes
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| - Two kinds of fullerene derivatives have been designed to examine the effect of the fullerene substituents onthe structure and photoelectrochemical properties of fullerene clusters electrophoretically deposited onnanostructured SnO2 electrodes. The cluster sizes increase and the incident photon-to-current efficienciesdecrease with introduction of large substituents into C60. The trend for photocurrent generation efficiency aswell as surface morphology on the electrode can be explained by the steric bulkiness around the C60 molecules.A C60 molecule with two alkoxy chains is suggested to give a bilayer vesicle structure, irrespective of thehydrophobic nature of both the C60 and alkoxy chain moieties. Such information will be valuable for thedesign of photoactive molecules, which are fabricated onto electrode surfaces to exhibit high energy conversionefficiency.
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