Electronic conductivity in nanostructured TiO2 films permeated with electrolyte

I. Abayev, A. Zaban, F. Fabregat-Santiago, J. Bisquert

Research output: Contribution to journalArticlepeer-review

94 Scopus citations


By combining two experimental techniques, electrochemical impedance spectroscopy (EIS) and the coplanar electrodes-gap configuration, we monitored the electronic conductivity in nanoporous TiO2 in aqueous solution (pH 2) as a function of the electrode potential. As a result of electron accumulation the conductivity varies over more than eight orders of magnitude up to a maximum σ = 3.7 × 10-3 Ω-1 cm-1.

Original languageEnglish
Pages (from-to)R4-R6
JournalPhysica Status Solidi (A) Applied Research
Issue number1 SPEC.
StatePublished - Mar 2003


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