title: 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.
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%.
authors.affiliation: Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Hironobu
authors.initials: H
authors.lastname: Hayashi
authors.forename: Ian V
authors.initials: IV
authors.lastname: Lightcap
authors.forename: Masahiko
authors.initials: M
authors.lastname: Tsujimoto
authors.forename: Mikio
authors.initials: M
authors.lastname: Takano
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Umeyama
authors.forename: Prashant V
authors.initials: PV
authors.lastname: Kamat
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Imahori
mesh_terms: D004566:Electrodes; D004579:Electron Transport; D006108:Graphite / Q000737:chemistry*; D053768:Metal Nanoparticles; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D010777:Photochemistry; D011166:Porphyrins / Q000737:chemistry*; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D011166:Porphyrins; D006108:Graphite; D015034:Zinc Oxide