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Proceedings Paper

Redox-modified silicate films: anthraquinone- and Prussian-blue-modified sol-gel electrodes
Author(s): Subramanian Bharathi; Zhibin Wu; Ovadia Lev
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Paper Abstract

Two types of sol-gel derived redox modified electrodes are introduced. Anthraquinone modified silicate films were produced from 1,5-di-[(3- trimethoxysilyl)propylamino)anthraquinone derived sol by dip- coating of ITO coated microscope slides. The monomer was synthesized from commercially available 3- aminopopyltrimethoxysilane and 1,5-dichloroanthraquinone. Prussian blue modified electrodes were produced by cycling the potential of a preformed, porous Fe2+ doped silicate film coated on ITO substrate in a potassium ferricyanide solution. In both cases, cyclic voltammetry and electronic spectra of the films show that more than 100 layers of redox monomers are electrochemically active, which indicates long range charge transport by electron self exchange mechanism.

Paper Details

Date Published: 2 October 1997
PDF: 7 pages
Proc. SPIE 3136, Sol-Gel Optics IV, (2 October 1997); doi: 10.1117/12.284117
Show Author Affiliations
Subramanian Bharathi, Hebrew Univ. of Jerusalem (Israel)
Zhibin Wu, Hebrew Univ. of Jerusalem (Israel)
Ovadia Lev, Hebrew Univ. of Jerusalem (Israel)

Published in SPIE Proceedings Vol. 3136:
Sol-Gel Optics IV
Bruce S. Dunn; John D. Mackenzie; Edward J. A. Pope; Helmut K. Schmidt; Masayuki Yamane, Editor(s)

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