Redox modified silicate films: Anthraquinone and Prussian blue modified sol-gel electrodes

Subramanian Bharathi*, Zhibin Wu, Ovadia Lev

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


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.

Original languageAmerican English
Pages (from-to)127-133
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1997
EventSol-Gel Optics IV - San Diego, CA, United States
Duration: 30 Jul 19971 Aug 1997


  • Anthraquinone
  • Electrodes
  • Prussian blue
  • Redox silicate
  • Sol-gel


Dive into the research topics of 'Redox modified silicate films: Anthraquinone and Prussian blue modified sol-gel electrodes'. Together they form a unique fingerprint.

Cite this