Particle-size effects on the photocurrent efficiency of nanostructured assemblies consisting of gold nanoparticles and a ruthenium complex-viologen linked thiol

Tsuyoshi Akiyama, Kazuma Inoue, Yutaka Kuwahara, Nao Terasaki, Yasuro Niidome, Sunao Yamada

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26 Citations (Scopus)

Abstract

Photoelectrochemical assemblies consisting of gold nanoparticles and a tris(2,2′-bipyridine)ruthenium(II)-viologen linked disulfide derivative ([RuVS]2) were constructed on gold electrodes, by a combination of salting-out and self-assembly processes. Structural characterization of the nanostructured assemblies was carried out by scanning electron microscopy and cyclic voltammetry. The adsorbed amount of the tris(2,2′-bipyridine)ruthenium(II)-viologen linked moiety (RuVS) was fairly well correlated with the ratio of the total gold surface area of the nanostructured electrode. Nanostructured assemblies consisting of ∼50 to ∼ < 100 nm particles showed high photocurrent efficiencies.

Original languageEnglish
Pages (from-to)303-307
Number of pages5
JournalJournal of Electroanalytical Chemistry
Volume550-551
DOIs
Publication statusPublished - Jul 17 2003

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All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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