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

Hayashi H; Lightcap IV; Tsujimoto M; Takano M; Umeyama T; Kamat PV; Imahori H

Journal of the American Chemical Society, Vol.133, No.20, 7684-7687, 2011

DOI10.1021/ja201813n Export Citation

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

Hayashi H, Lightcap IV, Tsujimoto M, Takano M, Umeyama T, Kamat PV, Imahori H

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 photo-current generation with an incident-photon-to-current efficiency of up to ca. 70%.