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

J Am Chem Soc. 2011 May 25;133(20):7684-7. doi: 10.1021/ja201813n. Epub 2011 May 3.

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%.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Electrodes
  • Electron Transport
  • Graphite / chemistry*
  • Metal Nanoparticles*
  • Microscopy, Electron, Scanning
  • Microscopy, Electron, Transmission
  • Photochemistry
  • Porphyrins / chemistry*
  • Zinc Oxide / chemistry*

Substances

  • Porphyrins
  • Graphite
  • Zinc Oxide