Electron Transfer Cascade by Organic/Inorganic Ternary Composites of Porphyrin, Zinc Oxide Nanoparticles, and Reduced Graphene Oxide on a Tin Oxide Electrode that Exhibits Efficient Photocurrent Generation
Journal of the American Chemical Society2011Vol. 133(20), pp. 7684–7687
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Hironobu Hayashi, Ian V. Lightcap, Masahiko Tsujimoto, Mikio Takano, Tomokazu Umeyama, Prashant V. Kamat, Hiroshi Imahori
Abstract
A bottom-up strategy has been developed to construct a multiple electron transfer system composed of organic/inorganic ternary composites (porphyrin, zinc oxide nanoparticles, reduced graphene oxide) on a semiconducting electrode without impairing the respective donor-acceptor components. The hierarchical electron transfer cascade system exhibited remarkably high photocurrent generation with an incident-photon-to-current efficiency of up to ca. 70%.
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